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30992133973 = 223736433803
BaseRepresentation
bin11100110111010001…
…100110111101010101
32221222220011112022211
4130313101212331111
51001432441241343
622123152553421
72145004535503
oct346721467525
987886145284
1030992133973
1112164284a69
12600b252871
132bcbaa9b18
141700109673
15c15ca479d
hex737466f55

30992133973 has 8 divisors (see below), whose sum is σ = 31022654688. Its totient is φ = 30961632624.

The previous prime is 30992133937. The next prime is 30992133979. The reversal of 30992133973 is 37933129903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30992133973 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 (30992133979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8147490 + ... + 8151292.

It is an arithmetic number, because the mean of its divisors is an integer number (3877831836).

Almost surely, 230992133973 is an apocalyptic number.

It is an amenable number.

30992133973 is a deficient number, since it is larger than the sum of its proper divisors (30520715).

30992133973 is a wasteful number, since it uses less digits than its factorization.

30992133973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683.

The product of its (nonzero) digits is 826686, while the sum is 49.

The spelling of 30992133973 in words is "thirty billion, nine hundred ninety-two million, one hundred thirty-three thousand, nine hundred seventy-three".

Divisors: 1 2237 3643 3803 8149391 8507311 13854329 30992133973