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97879085 = 589219953
BaseRepresentation
bin1011101010110…
…00010000101101
320211011202212022
411311120100231
5200024112320
613413515525
72265646523
oct565302055
9224152768
1097879085
1150283007
1228942ba5
1317380325
14cddc313
1588d6325
hex5d5842d

97879085 has 8 divisors (see below), whose sum is σ = 118775160. Its totient is φ = 77423104.

The previous prime is 97879073. The next prime is 97879087. The reversal of 97879085 is 58097879.

It can be written as a sum of positive squares in 4 ways, for example, as 1485961 + 96393124 = 1219^2 + 9818^2 .

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 97879085 - 26 = 97879021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97879087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109532 + ... + 110421.

It is an arithmetic number, because the mean of its divisors is an integer number (14846895).

Almost surely, 297879085 is an apocalyptic number.

It is an amenable number.

97879085 is a deficient number, since it is larger than the sum of its proper divisors (20896075).

97879085 is a wasteful number, since it uses less digits than its factorization.

97879085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220047.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 97879085 is about 9893.3859219177. The cubic root of 97879085 is about 460.8539352141.

The spelling of 97879085 in words is "ninety-seven million, eight hundred seventy-nine thousand, eighty-five".

Divisors: 1 5 89 445 219953 1099765 19575817 97879085