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30502961707 = 143113213139
BaseRepresentation
bin11100011010000111…
…100100001000101011
32220201210201000010111
4130122013210020223
5444432224233312
622002440155151
72126614616341
oct343207441053
986653630114
1030502961707
1111a33143669
125ab3468ab7
132b5164628a
141695171991
15bd7d798a7
hex71a1e422b

30502961707 has 4 divisors (see below), whose sum is σ = 30503317960. Its totient is φ = 30502605456.

The previous prime is 30502961663. The next prime is 30502961761. The reversal of 30502961707 is 70716920503.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70716920503 = 576011227703.

It is a cyclic number.

It is not a de Polignac number, because 30502961707 - 231 = 28355478059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30502961707.

It is not an unprimeable number, because it can be changed into a prime (30502965707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36544 + ... + 249682.

It is an arithmetic number, because the mean of its divisors is an integer number (7625829490).

Almost surely, 230502961707 is an apocalyptic number.

30502961707 is a deficient number, since it is larger than the sum of its proper divisors (356253).

30502961707 is a wasteful number, since it uses less digits than its factorization.

30502961707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356252.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 30502961707 in words is "thirty billion, five hundred two million, nine hundred sixty-one thousand, seven hundred seven".

Divisors: 1 143113 213139 30502961707