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30571205207 = 1132694092459
BaseRepresentation
bin11100011110001011…
…111001001001010111
32220220120010010121112
4130132023321021113
51000102212031312
622013315005235
72131403646104
oct343613711127
986816103545
1030571205207
1111a68714a54
125b1229981b
132b6281b44a
1416a0257aab
15bddd59d22
hex71e2f9257

30571205207 has 16 divisors (see below), whose sum is σ = 31044708000. Its totient is φ = 30101965824.

The previous prime is 30571205173. The next prime is 30571205227. The reversal of 30571205207 is 70250217503.

It is a cyclic number.

It is not a de Polignac number, because 30571205207 - 216 = 30571139671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30571205227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12431144 + ... + 12433602.

It is an arithmetic number, because the mean of its divisors is an integer number (1940294250).

Almost surely, 230571205207 is an apocalyptic number.

30571205207 is a deficient number, since it is larger than the sum of its proper divisors (473502793).

30571205207 is a wasteful number, since it uses less digits than its factorization.

30571205207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250.

The product of its (nonzero) digits is 14700, while the sum is 32.

The spelling of 30571205207 in words is "thirty billion, five hundred seventy-one million, two hundred five thousand, two hundred seven".

Divisors: 1 113 269 409 2459 30397 46217 110021 277867 661471 1005731 12432373 74746223 113647603 270541639 30571205207