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86912401 = 491177011
BaseRepresentation
bin1010010111000…
…10110110010001
320001112121101211
411023202312101
5134222144101
612342500121
72103512632
oct513426621
9201477354
1086912401
1145072634
1225134641
1315010774
14b785889
15796bc51
hex52e2d91

86912401 has 4 divisors (see below), whose sum is σ = 87089904. Its totient is φ = 86734900.

The previous prime is 86912393. The next prime is 86912407. The reversal of 86912401 is 10421968.

It is a happy number.

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 86912401 - 23 = 86912393 is a prime.

It is a Smith number, since the sum of its digits (31) 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 (86912407) 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, 88015 + ... + 88996.

It is an arithmetic number, because the mean of its divisors is an integer number (21772476).

Almost surely, 286912401 is an apocalyptic number.

It is an amenable number.

86912401 is a deficient number, since it is larger than the sum of its proper divisors (177503).

86912401 is a wasteful number, since it uses less digits than its factorization.

86912401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177502.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 86912401 is about 9322.6820711639. The cubic root of 86912401 is about 442.9559937060.

The spelling of 86912401 in words is "eighty-six million, nine hundred twelve thousand, four hundred one".

Divisors: 1 491 177011 86912401