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23012143100 = 2252230121431
BaseRepresentation
bin10101011011101000…
…010110111111111100
32012101202101222210022
4111123220112333330
5334112102034400
614323250031312
71443155663132
oct253350267774
965352358708
1023012143100
119839833791
124562878538
13222975132b
14118436d752
158ea40cb85
hex55ba16ffc

23012143100 has 18 divisors (see below), whose sum is σ = 49936350744. Its totient is φ = 9204857200.

The previous prime is 23012143097. The next prime is 23012143127. The reversal of 23012143100 is 134121032.

It is a super-2 number, since 2×230121431002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115060616 + ... + 115060815.

It is an arithmetic number, because the mean of its divisors is an integer number (2774241708).

Almost surely, 223012143100 is an apocalyptic number.

23012143100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012143100 is an abundant number, since it is smaller than the sum of its proper divisors (26924207644).

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

23012143100 is a wasteful number, since it uses less digits than its factorization.

23012143100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230121445 (or 230121438 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23012143100 its reverse (134121032), we get a palindrome (23146264132).

The spelling of 23012143100 in words is "twenty-three billion, twelve million, one hundred forty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 230121431 460242862 920485724 1150607155 2301214310 4602428620 5753035775 11506071550 23012143100