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816062961 = 3738860141
BaseRepresentation
bin110000101001000…
…010000111110001
32002212120021221010
4300221002013301
53132403003321
6212551021133
726136264210
oct6051020761
92085507833
10816062961
113897121aa
121a936a7a9
131000b82bc
147a54b077
154b99b676
hex30a421f1

816062961 has 8 divisors (see below), whose sum is σ = 1243524544. Its totient is φ = 466321680.

The previous prime is 816062953. The next prime is 816063013. The reversal of 816062961 is 169260618.

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

It is not a de Polignac number, because 816062961 - 23 = 816062953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816062161) 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, 19430050 + ... + 19430091.

It is an arithmetic number, because the mean of its divisors is an integer number (155440568).

Almost surely, 2816062961 is an apocalyptic number.

It is an amenable number.

816062961 is a deficient number, since it is larger than the sum of its proper divisors (427461583).

816062961 is a wasteful number, since it uses less digits than its factorization.

816062961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38860151.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 816062961 is about 28566.8157308441. The cubic root of 816062961 is about 934.4897789164.

The spelling of 816062961 in words is "eight hundred sixteen million, sixty-two thousand, nine hundred sixty-one".

Divisors: 1 3 7 21 38860141 116580423 272020987 816062961