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20528076 = 22331139397
BaseRepresentation
bin100111001001…
…1101111001100
31102121221020010
41032103233030
520223344301
62011553220
7336325422
oct116235714
942557203
1020528076
1110651058
126a5b810
1343398ba
142a25112
151c075d6
hex1393bcc

20528076 has 48 divisors (see below), whose sum is σ = 49925120. Its totient is φ = 6557760.

The previous prime is 20528069. The next prime is 20528077. The reversal of 20528076 is 67082502.

It is not an unprimeable number, because it can be changed into a prime (20528077) 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, 51510 + ... + 51906.

Almost surely, 220528076 is an apocalyptic number.

It is an amenable number.

20528076 is an abundant number, since it is smaller than the sum of its proper divisors (29397044).

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

20528076 is a wasteful number, since it uses less digits than its factorization.

20528076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20528076 is about 4530.7919837485. The cubic root of 20528076 is about 273.8100695934.

The spelling of 20528076 in words is "twenty million, five hundred twenty-eight thousand, seventy-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 139 186 278 372 397 417 556 794 834 1191 1588 1668 2382 4309 4764 8618 12307 12927 17236 24614 25854 36921 49228 51708 55183 73842 110366 147684 165549 220732 331098 662196 1710673 3421346 5132019 6842692 10264038 20528076