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30344633861 = 2341673311451
BaseRepresentation
bin11100010000101011…
…100101111000000101
32220022202210010011012
4130100223211320011
5444121211240421
621535022452005
72122653063203
oct342053457005
986282703135
1030344633861
1111961833603
125a6a434005
132b278bc969
14167c11a073
15bc900295b
hex710ae5e05

30344633861 has 32 divisors (see below), whose sum is σ = 33042594816. Its totient is φ = 27791280000.

The previous prime is 30344633797. The next prime is 30344633881. The reversal of 30344633861 is 16833644303.

It is a cyclic number.

It is not a de Polignac number, because 30344633861 - 26 = 30344633797 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30344633881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20912186 + ... + 20913636.

It is an arithmetic number, because the mean of its divisors is an integer number (1032581088).

Almost surely, 230344633861 is an apocalyptic number.

It is an amenable number.

30344633861 is a deficient number, since it is larger than the sum of its proper divisors (2697960955).

30344633861 is a wasteful number, since it uses less digits than its factorization.

30344633861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 30344633861 in words is "thirty billion, three hundred forty-four million, six hundred thirty-three thousand, eight hundred sixty-one".

Divisors: 1 23 41 67 331 943 1451 1541 2747 7613 13571 22177 33373 59491 63181 97217 312133 480281 510071 909257 1368293 2235991 3985897 11046463 19691521 20912911 32178827 91675631 452904983 740113021 1319331907 30344633861