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20276452 = 2272924971
BaseRepresentation
bin100110101011…
…0010011100100
31102011011001201
41031112103210
520142321302
62002332244
7334230010
oct115262344
942134051
1020276452
1110499aa9
12695a084
13427c201
14299b540
151ba7c87
hex13564e4

20276452 has 24 divisors (see below), whose sum is σ = 41952960. Its totient is φ = 8389920.

The previous prime is 20276447. The next prime is 20276489. The reversal of 20276452 is 25467202.

20276452 = T1168 + T1169 + ... + T1196.

It is a super-2 number, since 2×202764522 = 822269011416608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20276452.

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, 11674 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (1748040).

Almost surely, 220276452 is an apocalyptic number.

It is an amenable number.

20276452 is an abundant number, since it is smaller than the sum of its proper divisors (21676508).

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

20276452 is a wasteful number, since it uses less digits than its factorization.

20276452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25011 (or 25009 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20276452 is about 4502.9381519181. The cubic root of 20276452 is about 272.6867199367.

The spelling of 20276452 in words is "twenty million, two hundred seventy-six thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 24971 49942 99884 174797 349594 699188 724159 1448318 2896636 5069113 10138226 20276452