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30797466957 = 3273271117291
BaseRepresentation
bin11100101011101011…
…000000110101001101
32221111022212102101100
4130223223000311031
51001033122420312
622052000333313
72140122102255
oct345353006515
987438772340
1030797466957
1112074404834
125b76014239
132b9a66c03a
1416c2314965
15c03b505dc
hex72bac0d4d

30797466957 has 24 divisors (see below), whose sum is σ = 45113859648. Its totient is φ = 20241748800.

The previous prime is 30797466901. The next prime is 30797466983. The reversal of 30797466957 is 75966479703.

30797466957 is a `hidden beast` number, since 30 + 7 + 97 + 466 + 9 + 57 = 666.

It is not a de Polignac number, because 30797466957 - 211 = 30797464909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30797466894 and 30797466903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30797466157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1772482 + ... + 1789772.

It is an arithmetic number, because the mean of its divisors is an integer number (1879744152).

Almost surely, 230797466957 is an apocalyptic number.

It is an amenable number.

30797466957 is a deficient number, since it is larger than the sum of its proper divisors (14316392691).

30797466957 is a wasteful number, since it uses less digits than its factorization.

30797466957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20081 (or 20078 counting only the distinct ones).

The product of its (nonzero) digits is 60011280, while the sum is 63.

The spelling of 30797466957 in words is "thirty billion, seven hundred ninety-seven million, four hundred sixty-six thousand, nine hundred fifty-seven".

Divisors: 1 3 9 73 219 657 2711 8133 17291 24399 51873 155619 197903 593709 1262243 1781127 3786729 11360187 46875901 140627703 421883109 3421940773 10265822319 30797466957