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309041680667 = 1379772308883
BaseRepresentation
bin1000111111101000101…
…00011101000100011011
31002112200122102222212212
410133310110131010123
520030404132240132
6353545523425335
731220224641356
oct4376424350433
91075618388785
10309041680667
1110a077a76865
124ba8952524b
13231b1113705
1410d59cc729d
15808b3705b2
hex47f451d11b

309041680667 has 8 divisors (see below), whose sum is σ = 311616220176. Its totient is φ = 306471761152.

The previous prime is 309041680657. The next prime is 309041680769. The reversal of 309041680667 is 766086140903.

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

It is a cyclic number.

It is not a de Polignac number, because 309041680667 - 26 = 309041680603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309041680627) 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, 1020593 + ... + 1288290.

It is an arithmetic number, because the mean of its divisors is an integer number (38952027522).

Almost surely, 2309041680667 is an apocalyptic number.

309041680667 is a deficient number, since it is larger than the sum of its proper divisors (2574539509).

309041680667 is a wasteful number, since it uses less digits than its factorization.

309041680667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309997.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 309041680667 in words is "three hundred nine billion, forty-one million, six hundred eighty thousand, six hundred sixty-seven".

Divisors: 1 137 977 133849 2308883 316316971 2255778691 309041680667