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20025703412 = 22111347744893
BaseRepresentation
bin10010101001100111…
…111111101111110100
31220200121220010200222
4102221213333233310
5312003040002122
613111044153512
71306153445651
oct225147775764
956617803628
1020025703412
118546a95410
123a6a698898
131b71b07060
14d7d896c28
157c3146b42
hex4a99ffbf4

20025703412 has 48 divisors (see below), whose sum is σ = 42047776512. Its totient is φ = 8223607680.

The previous prime is 20025703381. The next prime is 20025703483. The reversal of 20025703412 is 21430752002.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345563 + ... + 399330.

It is an arithmetic number, because the mean of its divisors is an integer number (875995344).

Almost surely, 220025703412 is an apocalyptic number.

20025703412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20025703412 is an abundant number, since it is smaller than the sum of its proper divisors (22022073100).

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

20025703412 is a wasteful number, since it uses less digits than its factorization.

20025703412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744968 (or 744966 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The spelling of 20025703412 in words is "twenty billion, twenty-five million, seven hundred three thousand, four hundred twelve".

Divisors: 1 2 4 11 13 22 26 44 47 52 94 143 188 286 517 572 611 1034 1222 2068 2444 6721 13442 26884 744893 1489786 2979572 8193823 9683609 16387646 19367218 32775292 35009971 38734436 70019942 106519699 140039884 213039398 385109681 426078796 455129623 770219362 910259246 1540438724 1820518492 5006425853 10012851706 20025703412