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47475489678 = 23157382313183
BaseRepresentation
bin101100001101110000…
…100111101110001110
311112112122111202111120
4230031300213232032
51234212211132203
633450540301410
73300326001231
oct541560475616
9145478452446
1047475489678
1119152749091
12924b541866
134627a3b236
14242533d418
15137ce26b53
hexb0dc27b8e

47475489678 has 32 divisors (see below), whose sum is σ = 95588007936. Its totient is φ = 15719060448.

The previous prime is 47475489641. The next prime is 47475489683. The reversal of 47475489678 is 87698457474.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3594675 + ... + 3607857.

It is an arithmetic number, because the mean of its divisors is an integer number (2987125248).

Almost surely, 247475489678 is an apocalyptic number.

47475489678 is an abundant number, since it is smaller than the sum of its proper divisors (48112518258).

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

47475489678 is a wasteful number, since it uses less digits than its factorization.

47475489678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17168.

The product of its digits is 379330560, while the sum is 69.

The spelling of 47475489678 in words is "forty-seven billion, four hundred seventy-five million, four hundred eighty-nine thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 157 314 471 942 3823 7646 11469 13183 22938 26366 39549 79098 600211 1200422 1800633 2069731 3601266 4139462 6209193 12418386 50398609 100797218 151195827 302391654 7912581613 15825163226 23737744839 47475489678