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97137269 = 1729197033
BaseRepresentation
bin1011100101000…
…11001001110101
320202210002021122
411302203021311
5144331343034
613345553325
72256440015
oct562431165
9222702248
1097137269
114a916739
1228645845
1317180798
14cc87c45
1587db62e
hex5ca3275

97137269 has 8 divisors (see below), whose sum is σ = 106398360. Its totient is φ = 88270336.

The previous prime is 97137233. The next prime is 97137277. The reversal of 97137269 is 96273179.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57912100 + 39225169 = 7610^2 + 6263^2 .

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 97137269 - 224 = 80360053 is a prime.

It is a super-2 number, since 2×971372692 = 18871298057556722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97131269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98024 + ... + 99009.

It is an arithmetic number, because the mean of its divisors is an integer number (13299795).

Almost surely, 297137269 is an apocalyptic number.

It is an amenable number.

97137269 is a deficient number, since it is larger than the sum of its proper divisors (9261091).

97137269 is a wasteful number, since it uses less digits than its factorization.

97137269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197079.

The product of its digits is 142884, while the sum is 44.

The square root of 97137269 is about 9855.8241157196. The cubic root of 97137269 is about 459.6867258926.

The spelling of 97137269 in words is "ninety-seven million, one hundred thirty-seven thousand, two hundred sixty-nine".

Divisors: 1 17 29 493 197033 3349561 5713957 97137269