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30755250830 = 253559186413
BaseRepresentation
bin11100101001001001…
…111110001010001110
32221101101102121202002
4130221021332022032
51000441321011310
622043451432302
72136100214213
oct345111761216
987341377662
1030755250830
11120525a0177
125b63a55692
132b919aa895
1416ba885b0a
15c000b1da5
hex72927e28e

30755250830 has 16 divisors (see below), whose sum is σ = 55361647584. Its totient is φ = 12301612320.

The previous prime is 30755250811. The next prime is 30755250871. The reversal of 30755250830 is 3805255703.

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, 312704 + ... + 399116.

It is an arithmetic number, because the mean of its divisors is an integer number (3460102974).

Almost surely, 230755250830 is an apocalyptic number.

30755250830 is a deficient number, since it is larger than the sum of its proper divisors (24606396754).

30755250830 is a wasteful number, since it uses less digits than its factorization.

30755250830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122011.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 30755250830 in words is "thirty billion, seven hundred fifty-five million, two hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 10 35591 71182 86413 172826 177955 355910 432065 864130 3075525083 6151050166 15377625415 30755250830