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3150972917 = 4583368749
BaseRepresentation
bin1011101111010000…
…0000011111110101
322010121010000020122
42323310000133311
522423122113132
61240400141325
7141040553651
oct27364003765
98117100218
103150972917
111377707654
1273b307845
133b2a64221
1421c6a5a61
15136966912
hexbbd007f5

3150972917 has 4 divisors (see below), whose sum is σ = 3151087500. Its totient is φ = 3150858336.

The previous prime is 3150972911. The next prime is 3150972961. The reversal of 3150972917 is 7192790513.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7192790513 = 42989167317.

It can be written as a sum of positive squares in 2 ways, for example, as 1021058116 + 2129914801 = 31954^2 + 46151^2 .

It is a cyclic number.

It is not a de Polignac number, because 3150972917 - 220 = 3149924341 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 (3150972911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11459 + ... + 80207.

It is an arithmetic number, because the mean of its divisors is an integer number (787771875).

It is a Poulet number, since it divides 23150972916-1.

Almost surely, 23150972917 is an apocalyptic number.

3150972917 is the 45833-rd pentagonal number.

It is an amenable number.

3150972917 is a deficient number, since it is larger than the sum of its proper divisors (114583).

3150972917 is an equidigital number, since it uses as much as digits as its factorization.

3150972917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114582.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 3150972917 is about 56133.5275659743. The cubic root of 3150972917 is about 1466.0481135880.

The spelling of 3150972917 in words is "three billion, one hundred fifty million, nine hundred seventy-two thousand, nine hundred seventeen".

Divisors: 1 45833 68749 3150972917