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92742393 = 330914131
BaseRepresentation
bin1011000011100…
…10001011111001
320110111210122110
411201302023321
5142220224033
613111442533
72204203662
oct541621371
9213453573
1092742393
1148394807
1227086449
13162a2273
14c462369
15821e363
hex58722f9

92742393 has 4 divisors (see below), whose sum is σ = 123656528. Its totient is φ = 61828260.

The previous prime is 92742389. The next prime is 92742413. The reversal of 92742393 is 39324729.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39324729 = 313108243.

It is not a de Polignac number, because 92742393 - 22 = 92742389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92742383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15457063 + ... + 15457068.

It is an arithmetic number, because the mean of its divisors is an integer number (30914132).

Almost surely, 292742393 is an apocalyptic number.

It is an amenable number.

92742393 is a deficient number, since it is larger than the sum of its proper divisors (30914135).

92742393 is a wasteful number, since it uses less digits than its factorization.

92742393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30914134.

The product of its digits is 81648, while the sum is 39.

The square root of 92742393 is about 9630.2851982691. The cubic root of 92742393 is about 452.6467771663.

The spelling of 92742393 in words is "ninety-two million, seven hundred forty-two thousand, three hundred ninety-three".

Divisors: 1 3 30914131 92742393