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27145231300 = 22521137666959
BaseRepresentation
bin11001010001111110…
…110101101111000100
32121001210112121221001
4121101332311233010
5421043134400200
620245332303044
71650453442015
oct312176655704
977053477831
1027145231300
111056a859060
125316a71a84
132737b00055
14145724900c
15a8d1c176a
hex651fb5bc4

27145231300 has 72 divisors (see below), whose sum is σ = 65997025920. Its totient is φ = 9604195200.

The previous prime is 27145231283. The next prime is 27145231303. The reversal of 27145231300 is 313254172.

It is not an unprimeable number, because it can be changed into a prime (27145231303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292780 + ... + 374179.

It is an arithmetic number, because the mean of its divisors is an integer number (916625360).

Almost surely, 227145231300 is an apocalyptic number.

27145231300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27145231300 is an abundant number, since it is smaller than the sum of its proper divisors (38851794620).

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

27145231300 is a wasteful number, since it uses less digits than its factorization.

27145231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667021 (or 667014 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 27145231300 its reverse (313254172), we get a palindrome (27458485472).

The spelling of 27145231300 in words is "twenty-seven billion, one hundred forty-five million, two hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 37 44 50 55 74 100 110 148 185 220 275 370 407 550 740 814 925 1100 1628 1850 2035 3700 4070 8140 10175 20350 40700 666959 1333918 2667836 3334795 6669590 7336549 13339180 14673098 16673975 24677483 29346196 33347950 36682745 49354966 66695900 73365490 98709932 123387415 146730980 183413725 246774830 271452313 366827450 493549660 542904626 616937075 733654900 1085809252 1233874150 1357261565 2467748300 2714523130 5429046260 6786307825 13572615650 27145231300