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30441502252 = 2272155313787
BaseRepresentation
bin11100010110011101…
…000111011000101100
32220120112001112121101
4130112131013120230
5444321011033002
621552403012444
72125240333300
oct342635073054
986515045541
1030441502252
1111a01486227
125a9696a124
132b419a7c35
14168ad33d00
15bd2789587
hex71674762c

30441502252 has 18 divisors (see below), whose sum is σ = 61970201412. Its totient is φ = 13046358024.

The previous prime is 30441502249. The next prime is 30441502261. The reversal of 30441502252 is 25220514403.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30441502252.

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, 77656698 + ... + 77657089.

Almost surely, 230441502252 is an apocalyptic number.

It is an amenable number.

30441502252 is an abundant number, since it is smaller than the sum of its proper divisors (31528699160).

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

30441502252 is a wasteful number, since it uses less digits than its factorization.

30441502252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155313805 (or 155313796 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 30441502252 in words is "thirty billion, four hundred forty-one million, five hundred two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 196 155313787 310627574 621255148 1087196509 2174393018 4348786036 7610375563 15220751126 30441502252