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82954391 = 1316573851
BaseRepresentation
bin1001111000111…
…00100010010111
312210002112000212
410330130202113
5132214020031
612122000035
72025046352
oct474344227
9183075025
1082954391
1142909953
122394601b
1314256050
14b035299
15743912b
hex4f1c897

82954391 has 8 divisors (see below), whose sum is σ = 89412624. Its totient is φ = 76507200.

The previous prime is 82954351. The next prime is 82954393. The reversal of 82954391 is 19345928.

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 82954391 - 226 = 15845527 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 (82954393) 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, 19616 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (11176578).

Almost surely, 282954391 is an apocalyptic number.

82954391 is a deficient number, since it is larger than the sum of its proper divisors (6458233).

82954391 is a wasteful number, since it uses less digits than its factorization.

82954391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521.

The product of its digits is 77760, while the sum is 41.

The square root of 82954391 is about 9107.9301161131. The cubic root of 82954391 is about 436.1271530356.

The spelling of 82954391 in words is "eighty-two million, nine hundred fifty-four thousand, three hundred ninety-one".

Divisors: 1 13 1657 3851 21541 50063 6381107 82954391