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97429985 = 525775821
BaseRepresentation
bin1011100111010…
…10100111100001
320210022221210222
411303222213201
5144420224420
613400132425
72262066302
oct563524741
9223287728
1097429985
114aaa6654
1228767115
1317253aa3
14cd227a9
158848225
hex5cea9e1

97429985 has 8 divisors (see below), whose sum is σ = 117372456. Its totient is φ = 77639680.

The previous prime is 97429951. The next prime is 97430017. The reversal of 97429985 is 58992479.

It can be written as a sum of positive squares in 4 ways, for example, as 68442529 + 28987456 = 8273^2 + 5384^2 .

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

It is not a de Polignac number, because 97429985 - 26 = 97429921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36626 + ... + 39195.

It is an arithmetic number, because the mean of its divisors is an integer number (14671557).

Almost surely, 297429985 is an apocalyptic number.

It is an amenable number.

97429985 is a deficient number, since it is larger than the sum of its proper divisors (19942471).

97429985 is a wasteful number, since it uses less digits than its factorization.

97429985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76083.

The product of its digits is 1632960, while the sum is 53.

The square root of 97429985 is about 9870.6628450170. The cubic root of 97429985 is about 460.1480068784.

The spelling of 97429985 in words is "ninety-seven million, four hundred twenty-nine thousand, nine hundred eighty-five".

Divisors: 1 5 257 1285 75821 379105 19485997 97429985