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97593381 = 32291991879
BaseRepresentation
bin1011101000100…
…10100000100101
320210122020221200
411310102200211
5144440442011
613403433113
72263346544
oct564224045
9223566850
1097593381
11500a8396
1228825799
13172b0282
14cd6615b
15887b856
hex5d12825

97593381 has 24 divisors (see below), whose sum is σ = 146640000. Its totient is φ = 62469792.

The previous prime is 97593373. The next prime is 97593389. The reversal of 97593381 is 18339579.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97593373) and next prime (97593389).

It is not a de Polignac number, because 97593381 - 23 = 97593373 is a prime.

It is a super-2 number, since 2×975933812 = 19048936030022322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97593389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51000 + ... + 52878.

It is an arithmetic number, because the mean of its divisors is an integer number (6110000).

Almost surely, 297593381 is an apocalyptic number.

It is an amenable number.

97593381 is a deficient number, since it is larger than the sum of its proper divisors (49046619).

97593381 is a wasteful number, since it uses less digits than its factorization.

97593381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2110 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 97593381 is about 9878.9362281574. The cubic root of 97593381 is about 460.4050952623.

The spelling of 97593381 in words is "ninety-seven million, five hundred ninety-three thousand, three hundred eighty-one".

Divisors: 1 3 9 29 87 199 261 597 1791 1879 5637 5771 16911 17313 51939 54491 163473 373921 490419 1121763 3365289 10843709 32531127 97593381