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97214517 = 3217635389
BaseRepresentation
bin1011100101101…
…10000000110101
320202221000020200
411302312000311
5144341331032
613351351113
72260211151
oct562660065
9222830220
1097214517
114a969784
1228682499
13171a99aa
14cca8061
15880447c
hex5cb6035

97214517 has 12 divisors (see below), whose sum is σ = 148681260. Its totient is φ = 60997248.

The previous prime is 97214489. The next prime is 97214519. The reversal of 97214517 is 71541279.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87721956 + 9492561 = 9366^2 + 3081^2 .

It is not a de Polignac number, because 97214517 - 27 = 97214389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97214519) 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 11 ways as a sum of consecutive naturals, for example, 317542 + ... + 317847.

It is an arithmetic number, because the mean of its divisors is an integer number (12390105).

Almost surely, 297214517 is an apocalyptic number.

It is an amenable number.

97214517 is a deficient number, since it is larger than the sum of its proper divisors (51466743).

97214517 is a wasteful number, since it uses less digits than its factorization.

97214517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635412 (or 635409 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 97214517 is about 9859.7422380101. The cubic root of 97214517 is about 459.8085482432.

The spelling of 97214517 in words is "ninety-seven million, two hundred fourteen thousand, five hundred seventeen".

Divisors: 1 3 9 17 51 153 635389 1906167 5718501 10801613 32404839 97214517