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47139960290 = 2525737614877
BaseRepresentation
bin101011111001110000…
…101011010111100010
311111200021011002201012
4223321300223113202
51233020312212130
633353352540522
73256113023363
oct537160532742
9144607132635
1047139960290
1118aa0307975
1291770b1742
1345a3380737
1423d295bb6a
15135d74a995
hexaf9c2b5e2

47139960290 has 32 divisors (see below), whose sum is σ = 85222211184. Its totient is φ = 18773770240.

The previous prime is 47139960269. The next prime is 47139960319. The reversal of 47139960290 is 9206993174.

It can be written as a sum of positive squares in 8 ways, for example, as 29005836721 + 18134123569 = 170311^2 + 134663^2 .

It is a super-2 number, since 2×471399602902 (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 15 ways as a sum of consecutive naturals, for example, 9663332 + ... + 9668208.

Almost surely, 247139960290 is an apocalyptic number.

47139960290 is a deficient number, since it is larger than the sum of its proper divisors (38082250894).

47139960290 is a wasteful number, since it uses less digits than its factorization.

47139960290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 47139960290 in words is "forty-seven billion, one hundred thirty-nine million, nine hundred sixty thousand, two hundred ninety".

Divisors: 1 2 5 10 257 514 1285 2570 3761 4877 7522 9754 18805 24385 37610 48770 966577 1253389 1933154 2506778 4832885 6266945 9665770 12533890 18342397 36684794 91711985 183423970 4713996029 9427992058 23569980145 47139960290