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82979085 = 357790277
BaseRepresentation
bin1001111001000…
…10100100001101
312210010202220110
410330202210031
5132220312320
612122310233
72025211350
oct474424415
9183122813
1082979085
1142926462
1223958379
1314264367
14b040297
1574415e0
hex4f2290d

82979085 has 16 divisors (see below), whose sum is σ = 151733376. Its totient is φ = 37933248.

The previous prime is 82979069. The next prime is 82979131. The reversal of 82979085 is 58097928.

It is a happy number.

It is not a de Polignac number, because 82979085 - 24 = 82979069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395034 + ... + 395243.

It is an arithmetic number, because the mean of its divisors is an integer number (9483336).

Almost surely, 282979085 is an apocalyptic number.

It is an amenable number.

82979085 is a deficient number, since it is larger than the sum of its proper divisors (68754291).

82979085 is a wasteful number, since it uses less digits than its factorization.

82979085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790292.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 82979085 is about 9109.2856470746. The cubic root of 82979085 is about 436.1704244257.

The spelling of 82979085 in words is "eighty-two million, nine hundred seventy-nine thousand, eighty-five".

Divisors: 1 3 5 7 15 21 35 105 790277 2370831 3951385 5531939 11854155 16595817 27659695 82979085