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31006454050 = 25211134336567
BaseRepresentation
bin11100111000001000…
…001111000100100010
32222000220010001210001
4130320020033010202
51002000123012200
622124423530214
72145240340135
oct347010170442
988026101701
1031006454050
1112171375940
126013bb996a
132c01a51b40
141701d9621c
15c1718276a
hex73820f122

31006454050 has 48 divisors (see below), whose sum is σ = 67754538432. Its totient is φ = 10407758400.

The previous prime is 31006454033. The next prime is 31006454081. The reversal of 31006454050 is 5045460013.

It is a super-2 number, since 2×310064540502 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2161134 + ... + 2175433.

It is an arithmetic number, because the mean of its divisors is an integer number (1411552884).

Almost surely, 231006454050 is an apocalyptic number.

31006454050 is an abundant number, since it is smaller than the sum of its proper divisors (36748084382).

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

31006454050 is a wasteful number, since it uses less digits than its factorization.

31006454050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336603 (or 4336598 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 31006454050 in words is "thirty-one billion, six million, four hundred fifty-four thousand, fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 110 130 143 275 286 325 550 650 715 1430 3575 7150 4336567 8673134 21682835 43365670 47702237 56375371 95404474 108414175 112750742 216828350 238511185 281876855 477022370 563753710 620129081 1192555925 1240258162 1409384275 2385111850 2818768550 3100645405 6201290810 15503227025 31006454050