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47892949090 = 2571374994051
BaseRepresentation
bin101100100110101001…
…000110100001100010
311120121202000220011021
4230212221012201202
51241041043332330
634000212040054
73313555231120
oct544651064142
9146552026137
1047892949090
1119347359568
12934730302a
13469338373c
14246496a910
1513a48d867a
hexb26a46862

47892949090 has 32 divisors (see below), whose sum is σ = 99241801344. Its totient is φ = 16300579200.

The previous prime is 47892949081. The next prime is 47892949129. The reversal of 47892949090 is 9094929874.

It is an alternating number because its digits alternate between even and odd.

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, 2487436 + ... + 2506615.

It is an arithmetic number, because the mean of its divisors is an integer number (3101306292).

Almost surely, 247892949090 is an apocalyptic number.

47892949090 is an abundant number, since it is smaller than the sum of its proper divisors (51348852254).

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

47892949090 is a wasteful number, since it uses less digits than its factorization.

47892949090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994202.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 47892949090 in words is "forty-seven billion, eight hundred ninety-two million, nine hundred forty-nine thousand, ninety".

Divisors: 1 2 5 7 10 14 35 70 137 274 685 959 1370 1918 4795 9590 4994051 9988102 24970255 34958357 49940510 69916714 174791785 349583570 684184987 1368369974 3420924935 4789294909 6841849870 9578589818 23946474545 47892949090