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97145013 = 378951977
BaseRepresentation
bin1011100101001…
…01000010110101
320202210110220110
411302211002311
5144332120023
613350053233
72256501420
oct562450265
9222713813
1097145013
114a921539
122864a219
1317184174
14cc8a9b7
1587dda93
hex5ca50b5

97145013 has 16 divisors (see below), whose sum is σ = 149696640. Its totient is φ = 54886656.

The previous prime is 97145003. The next prime is 97145023. The reversal of 97145013 is 31054179.

It is an interprime number because it is at equal distance from previous prime (97145003) and next prime (97145023).

It is not a de Polignac number, because 97145013 - 24 = 97144997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97145003) 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 15 ways as a sum of consecutive naturals, for example, 24120 + ... + 27857.

It is an arithmetic number, because the mean of its divisors is an integer number (9356040).

Almost surely, 297145013 is an apocalyptic number.

It is an amenable number.

97145013 is a deficient number, since it is larger than the sum of its proper divisors (52551627).

97145013 is a wasteful number, since it uses less digits than its factorization.

97145013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52076.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 97145013 is about 9856.2169720436. The cubic root of 97145013 is about 459.6989413188.

The spelling of 97145013 in words is "ninety-seven million, one hundred forty-five thousand, thirteen".

Divisors: 1 3 7 21 89 267 623 1869 51977 155931 363839 1091517 4625953 13877859 32381671 97145013