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115103231442 = 2332281793419
BaseRepresentation
bin110101100110010101…
…1111110110111010010
3102000002202000222212000
41223030223332313102
53341212411401232
6124513325414430
711213236216143
oct1531453766722
9360082028760
10115103231442
11448a6856461
121a383a0a416
13ab14861094
1457dcc77aca
152eda14127c
hex1accafedd2

115103231442 has 32 divisors (see below), whose sum is σ = 255798907200. Its totient is φ = 38365651584.

The previous prime is 115103231417. The next prime is 115103231471. The reversal of 115103231442 is 244132301511.

115103231442 is a `hidden beast` number, since 1 + 1 + 510 + 3 + 2 + 3 + 144 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185409 + ... + 1278827.

It is an arithmetic number, because the mean of its divisors is an integer number (7993715850).

Almost surely, 2115103231442 is an apocalyptic number.

115103231442 is an abundant number, since it is smaller than the sum of its proper divisors (140695675758).

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

115103231442 is a wasteful number, since it uses less digits than its factorization.

115103231442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116247 (or 116241 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 115103231442 its reverse (244132301511), we get a palindrome (359235532953).

The spelling of 115103231442 in words is "one hundred fifteen billion, one hundred three million, two hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 22817 45634 68451 93419 136902 186838 205353 280257 410706 560514 616059 840771 1232118 1681542 2522313 5044626 2131541323 4263082646 6394623969 12789247938 19183871907 38367743814 57551615721 115103231442