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47971172094 = 23139457125863
BaseRepresentation
bin101100101011010011…
…011111111011111110
311120211012020000221120
4230223103133323332
51241221110001334
634012044411410
73315525143406
oct545323377376
9146735200846
1047971172094
111938752667a
129369546b66
1346a6641041
1424710cd806
1513ab6da949
hexb2b4dfefe

47971172094 has 32 divisors (see below), whose sum is σ = 96844796160. Its totient is φ = 15840487872.

The previous prime is 47971172083. The next prime is 47971172099. The reversal of 47971172094 is 49027117974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47971172099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318207 + ... + 444069.

It is an arithmetic number, because the mean of its divisors is an integer number (3026399880).

Almost surely, 247971172094 is an apocalyptic number.

47971172094 is an abundant number, since it is smaller than the sum of its proper divisors (48873624066).

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

47971172094 is a wasteful number, since it uses less digits than its factorization.

47971172094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126464.

The product of its (nonzero) digits is 889056, while the sum is 51.

The spelling of 47971172094 in words is "forty-seven billion, nine hundred seventy-one million, one hundred seventy-two thousand, ninety-four".

Divisors: 1 2 3 6 139 278 417 457 834 914 1371 2742 63523 125863 127046 190569 251726 377589 381138 755178 17494957 34989914 52484871 57519391 104969742 115038782 172558173 345116346 7995195349 15990390698 23985586047 47971172094