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97064281 = 719134999
BaseRepresentation
bin1011100100100…
…01010101011001
320202122101011101
411302101111121
5144322024111
613344231401
72256014146
oct562212531
9222571141
1097064281
114a876916
122860b561
13171564b2
14cc693cd
1587c4bc1
hex5c91559

97064281 has 4 divisors (see below), whose sum is σ = 97200000. Its totient is φ = 96928564.

The previous prime is 97064273. The next prime is 97064309. The reversal of 97064281 is 18246079.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97064281 - 23 = 97064273 is a prime.

It is a super-2 number, since 2×970642812 = 18842949292093922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97064281.

It is not an unprimeable number, because it can be changed into a prime (97064221) 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 3 ways as a sum of consecutive naturals, for example, 66781 + ... + 68218.

It is an arithmetic number, because the mean of its divisors is an integer number (24300000).

Almost surely, 297064281 is an apocalyptic number.

It is an amenable number.

97064281 is a deficient number, since it is larger than the sum of its proper divisors (135719).

97064281 is a wasteful number, since it uses less digits than its factorization.

97064281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135718.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 97064281 is about 9852.1206346654. The cubic root of 97064281 is about 459.5715623306.

The spelling of 97064281 in words is "ninety-seven million, sixty-four thousand, two hundred eighty-one".

Divisors: 1 719 134999 97064281