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97123611 = 31319131071
BaseRepresentation
bin1011100100111…
…11110100011011
320202202101112210
411302133310123
5144330423421
613345410203
72256352134
oct562376433
9222671483
1097123611
114a907452
1228639963
13171774c0
14cc82c8b
1587d7576
hex5c9fd1b

97123611 has 16 divisors (see below), whose sum is σ = 146800640. Its totient is φ = 56622240.

The previous prime is 97123603. The next prime is 97123633. The reversal of 97123611 is 11632179.

It is not a de Polignac number, because 97123611 - 23 = 97123603 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97123681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64795 + ... + 66276.

It is an arithmetic number, because the mean of its divisors is an integer number (9175040).

Almost surely, 297123611 is an apocalyptic number.

97123611 is a deficient number, since it is larger than the sum of its proper divisors (49677029).

97123611 is a wasteful number, since it uses less digits than its factorization.

97123611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131106.

The product of its digits is 2268, while the sum is 30.

The square root of 97123611 is about 9855.1312015620. The cubic root of 97123611 is about 459.6651801095.

The spelling of 97123611 in words is "ninety-seven million, one hundred twenty-three thousand, six hundred eleven".

Divisors: 1 3 13 19 39 57 247 741 131071 393213 1703923 2490349 5111769 7471047 32374537 97123611