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20025944 = 235373647
BaseRepresentation
bin100110001100…
…1001001011000
31101200102102122
41030121021120
520111312234
61553120412
7332134451
oct114311130
941612378
1020025944
1110338874
126859108
1341c2193
142934128
151b5892e
hex1319258

20025944 has 32 divisors (see below), whose sum is σ = 38841120. Its totient is φ = 9674496.

The previous prime is 20025937. The next prime is 20025953. The reversal of 20025944 is 44952002.

It is a super-2 number, since 2×200259442 = 802076866182272, which contains 22 as substring.

It is a congruent number.

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, 30629 + ... + 31275.

It is an arithmetic number, because the mean of its divisors is an integer number (1213785).

Almost surely, 220025944 is an apocalyptic number.

It is an amenable number.

20025944 is a deficient number, since it is larger than the sum of its proper divisors (18815176).

20025944 is a wasteful number, since it uses less digits than its factorization.

20025944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20025944 is about 4475.0356423162. The cubic root of 20025944 is about 271.5590823624.

Adding to 20025944 its reverse (44952002), we get a palindrome (64977946).

The spelling of 20025944 in words is "twenty million, twenty-five thousand, nine hundred forty-four".

Divisors: 1 2 4 8 53 73 106 146 212 292 424 584 647 1294 2588 3869 5176 7738 15476 30952 34291 47231 68582 94462 137164 188924 274328 377848 2503243 5006486 10012972 20025944