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92073881 = 3792641
BaseRepresentation
bin1010111110011…
…10111110011001
320102020211121202
411133032332121
5142032331011
613045243545
72165420654
oct537167631
9212224552
1092073881
1147a78519
1226a035b5
13160c9bb3
14c32a89b
15813b23b
hex57cef99

92073881 has 6 divisors (see below), whose sum is σ = 92461482. Its totient is φ = 91687680.

The previous prime is 92073851. The next prime is 92073901. The reversal of 92073881 is 18837029.

It can be written as a sum of positive squares in only one way, i.e., 89775625 + 2298256 = 9475^2 + 1516^2 .

It is not a de Polignac number, because 92073881 - 210 = 92072857 is a prime.

It is a super-2 number, since 2×920738812 = 16955199124804322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (92073851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143321 + ... + 143961.

It is an arithmetic number, because the mean of its divisors is an integer number (15410247).

Almost surely, 292073881 is an apocalyptic number.

It is an amenable number.

92073881 is a deficient number, since it is larger than the sum of its proper divisors (387601).

92073881 is an frugal number, since it uses more digits than its factorization.

92073881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 92073881 is about 9595.5135870885. The cubic root of 92073881 is about 451.5565536930.

The spelling of 92073881 in words is "ninety-two million, seventy-three thousand, eight hundred eighty-one".

Divisors: 1 379 641 143641 242939 92073881