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30607888620 = 2235510131477
BaseRepresentation
bin11100100000010111…
…110101000011101100
32221000010010211210110
4130200113311003230
51000141104413440
622021105140020
72132330521611
oct344027650354
987003124713
1030607888620
1111a8739a821
125b2262a610
132b6a2c34ca
1416a5086508
15be21a4080
hex7205f50ec

30607888620 has 24 divisors (see below), whose sum is σ = 85702088304. Its totient is φ = 8162103616.

The previous prime is 30607888613. The next prime is 30607888643. The reversal of 30607888620 is 2688870603.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30607888620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255065679 + ... + 255065798.

It is an arithmetic number, because the mean of its divisors is an integer number (3570920346).

Almost surely, 230607888620 is an apocalyptic number.

30607888620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30607888620 is an abundant number, since it is smaller than the sum of its proper divisors (55094199684).

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

30607888620 is a wasteful number, since it uses less digits than its factorization.

30607888620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510131489 (or 510131487 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 30607888620 in words is "thirty billion, six hundred seven million, eight hundred eighty-eight thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 510131477 1020262954 1530394431 2040525908 2550657385 3060788862 5101314770 6121577724 7651972155 10202629540 15303944310 30607888620