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30255125142 = 2311458410987
BaseRepresentation
bin11100001011010110…
…001001001010010110
32220002112100121021110
4130023112021022112
5443430303001032
621522104155450
72120515214634
oct341326111226
986075317243
1030255125142
1111916258360
125a44468b86
132b121b0518
14167029a354
15bc12217cc
hex70b589296

30255125142 has 16 divisors (see below), whose sum is σ = 66011182272. Its totient is φ = 9168219720.

The previous prime is 30255125113. The next prime is 30255125167. The reversal of 30255125142 is 24152155203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229205428 + ... + 229205559.

It is an arithmetic number, because the mean of its divisors is an integer number (4125698892).

Almost surely, 230255125142 is an apocalyptic number.

30255125142 is an abundant number, since it is smaller than the sum of its proper divisors (35756057130).

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

30255125142 is a wasteful number, since it uses less digits than its factorization.

30255125142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458411003.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 30255125142 in words is "thirty billion, two hundred fifty-five million, one hundred twenty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 458410987 916821974 1375232961 2750465922 5042520857 10085041714 15127562571 30255125142