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30872397607 = 211114624537
BaseRepresentation
bin11100110000001000…
…110110011100100111
32221200112212021220121
4130300020312130213
51001211313210412
622103234342411
72142022023052
oct346010663447
987615767817
1030872397607
1112102733297
125b9712aa07
132bb0045bbc
1416cc25ba99
15c0a502107
hex730236727

30872397607 has 4 divisors (see below), whose sum is σ = 30887024256. Its totient is φ = 30857770960.

The previous prime is 30872397599. The next prime is 30872397637. The reversal of 30872397607 is 70679327803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30872397607 - 23 = 30872397599 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 (30872397637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7310158 + ... + 7314379.

It is an arithmetic number, because the mean of its divisors is an integer number (7721756064).

Almost surely, 230872397607 is an apocalyptic number.

30872397607 is a deficient number, since it is larger than the sum of its proper divisors (14626649).

30872397607 is a wasteful number, since it uses less digits than its factorization.

30872397607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14626648.

The product of its (nonzero) digits is 2667168, while the sum is 52.

The spelling of 30872397607 in words is "thirty billion, eight hundred seventy-two million, three hundred ninety-seven thousand, six hundred seven".

Divisors: 1 2111 14624537 30872397607