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47161387536 = 243982528907
BaseRepresentation
bin101011111011000010…
…011010101000010000
311111201202110201100220
4223323002122220100
51233041303400121
633355440113040
73256463115444
oct537302325020
9144652421326
1047161387536
111900141253a
129182305780
1345a7943693
1423d5738824
15136057e6c6
hexafb09aa10

47161387536 has 20 divisors (see below), whose sum is σ = 121833584592. Its totient is φ = 15720462496.

The previous prime is 47161387513. The next prime is 47161387541. The reversal of 47161387536 is 63578316174.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491264406 + ... + 491264501.

Almost surely, 247161387536 is an apocalyptic number.

It is an amenable number.

47161387536 is an abundant number, since it is smaller than the sum of its proper divisors (74672197056).

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

47161387536 is a wasteful number, since it uses less digits than its factorization.

47161387536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982528918 (or 982528912 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 47161387536 in words is "forty-seven billion, one hundred sixty-one million, three hundred eighty-seven thousand, five hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 982528907 1965057814 2947586721 3930115628 5895173442 7860231256 11790346884 15720462512 23580693768 47161387536