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20254892 = 2274316823
BaseRepresentation
bin100110101000…
…1000010101100
31102010001111012
41031101002230
520141124032
62002044352
7334110110
oct115210254
942101435
1020254892
1110484889
1269496b8
134272458
142993740
151ba16b2
hex13510ac

20254892 has 24 divisors (see below), whose sum is σ = 41454336. Its totient is φ = 8478288.

The previous prime is 20254831. The next prime is 20254901. The reversal of 20254892 is 29845202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7208 + ... + 9615.

It is an arithmetic number, because the mean of its divisors is an integer number (1727264).

Almost surely, 220254892 is an apocalyptic number.

It is an amenable number.

20254892 is an abundant number, since it is smaller than the sum of its proper divisors (21199444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20254892 is a wasteful number, since it uses less digits than its factorization.

20254892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16877 (or 16875 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20254892 is about 4500.5435227314. The cubic root of 20254892 is about 272.5900361796.

The spelling of 20254892 in words is "twenty million, two hundred fifty-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 16823 33646 67292 117761 235522 471044 723389 1446778 2893556 5063723 10127446 20254892