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20876268 = 2237318017
BaseRepresentation
bin100111110100…
…0101111101100
31110021121212010
41033220233230
520321020033
62023241220
7342305520
oct117505754
943247763
1020876268
1110869716
126ba9210
13442c22a
142ab5d80
151c75863
hex13e8bec

20876268 has 48 divisors (see below), whose sum is σ = 57473024. Its totient is φ = 5771520.

The previous prime is 20876267. The next prime is 20876279. The reversal of 20876268 is 86267802.

It is not an unprimeable number, because it can be changed into a prime (20876263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405 + ... + 6612.

Almost surely, 220876268 is an apocalyptic number.

20876268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20876268 is an abundant number, since it is smaller than the sum of its proper divisors (36596756).

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

20876268 is a wasteful number, since it uses less digits than its factorization.

20876268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8062 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 20876268 is about 4569.0554822633. The cubic root of 20876268 is about 275.3494972339.

The spelling of 20876268 in words is "twenty million, eight hundred seventy-six thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 651 868 1302 2604 8017 16034 24051 32068 48102 56119 96204 112238 168357 224476 248527 336714 497054 673428 745581 994108 1491162 1739689 2982324 3479378 5219067 6958756 10438134 20876268