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20908314 = 233755313
BaseRepresentation
bin100111111000…
…0100100011010
31110100020211000
41033300210122
520323031224
62024045430
7342501120
oct117604432
943306730
1020908314
11108907a9
127003876
1344409ab
142ac3910
151c800c9
hex13f091a

20908314 has 32 divisors (see below), whose sum is σ = 53101440. Its totient is φ = 5973696.

The previous prime is 20908309. The next prime is 20908331. The reversal of 20908314 is 41380902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27279 + ... + 28034.

It is an arithmetic number, because the mean of its divisors is an integer number (1659420).

Almost surely, 220908314 is an apocalyptic number.

20908314 is an abundant number, since it is smaller than the sum of its proper divisors (32193126).

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

20908314 is a wasteful number, since it uses less digits than its factorization.

20908314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55331 (or 55325 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20908314 is about 4572.5609892051. The cubic root of 20908314 is about 275.4903164460.

It can be divided in two parts, 2090 and 8314, that added together give a square (10404 = 1022).

The spelling of 20908314 in words is "twenty million, nine hundred eight thousand, three hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 55313 110626 165939 331878 387191 497817 774382 995634 1161573 1493451 2323146 2986902 3484719 6969438 10454157 20908314