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23130244122040 = 23511101911571331
BaseRepresentation
bin1010100001001011011011…
…11111000000010110111000
310000220020012111000201012201
411100211231333000112320
511012431214443401130
6121105515405115544
74605051004034266
oct520455577002670
9100806174021181
1023130244122040
1174085328913a0
122716967b58bb4
13cba232450573
1459d71cc09436
152a1a0dab0bca
hex15096dfc05b8

23130244122040 has 128 divisors (see below), whose sum is σ = 57399395005440. Its totient is φ = 8318564800000.

The previous prime is 23130244121899. The next prime is 23130244122061. The reversal of 23130244122040 is 4022144203132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40199175 + ... + 40770505.

It is an arithmetic number, because the mean of its divisors is an integer number (448432773480).

Almost surely, 223130244122040 is an apocalyptic number.

23130244122040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23130244122040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28699697502720).

23130244122040 is an abundant number, since it is smaller than the sum of its proper divisors (34269150883400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23130244122040 is a wasteful number, since it uses less digits than its factorization.

23130244122040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572365 (or 572361 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 23130244122040 its reverse (4022144203132), we get a palindrome (27152388325172).

The spelling of 23130244122040 in words is "twenty-three trillion, one hundred thirty billion, two hundred forty-four million, one hundred twenty-two thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 101 110 202 220 404 440 505 808 911 1010 1111 1822 2020 2222 3644 4040 4444 4555 5555 7288 8888 9110 10021 11110 18220 20042 22220 36440 40084 44440 50105 80168 92011 100210 184022 200420 368044 400840 460055 571331 736088 920110 1012121 1142662 1840220 2024242 2285324 2856655 3680440 4048484 4570648 5060605 5713310 6284641 8096968 10121210 11426620 12569282 20242420 22853240 25138564 31423205 40484840 50277128 57704431 62846410 115408862 125692820 230817724 251385640 288522155 461635448 520482541 577044310 634748741 1040965082 1154088620 1269497482 2081930164 2308177240 2538994964 2602412705 3173743705 4163860328 5077989928 5204825410 5725307951 6347487410 10409650820 11450615902 12694974820 20819301640 22901231804 25389949640 28626539755 45802463608 52568736641 57253079510 105137473282 114506159020 210274946564 229012318040 262843683205 420549893128 525687366410 578256103051 1051374732820 1156512206102 2102749465640 2313024412204 2891280515255 4626048824408 5782561030510 11565122061020 23130244122040