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48709572831 = 35528137957
BaseRepresentation
bin101101010111010100…
…010001100011011111
311122201122122200100000
4231113110101203133
51244224122312311
634213223105343
73343032352263
oct552724214337
9148648580300
1048709572831
1119726314017
1295348a2253
13479360705a
1425011c20a3
151401446056
hexb575118df

48709572831 has 24 divisors (see below), whose sum is σ = 72979872784. Its totient is φ = 32466044160.

The previous prime is 48709572797. The next prime is 48709572869. The reversal of 48709572831 is 13827590784.

It is a happy number.

48709572831 is a `hidden beast` number, since 487 + 0 + 95 + 72 + 8 + 3 + 1 = 666.

It is not a de Polignac number, because 48709572831 - 26 = 48709572767 is a prime.

It is a super-2 number, since 2×487095728312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48709573831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1264305 + ... + 1302261.

Almost surely, 248709572831 is an apocalyptic number.

48709572831 is a deficient number, since it is larger than the sum of its proper divisors (24270299953).

48709572831 is an equidigital number, since it uses as much as digits as its factorization.

48709572831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43253 (or 43241 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 48709572831 in words is "forty-eight billion, seven hundred nine million, five hundred seventy-two thousand, eight hundred thirty-one".

Divisors: 1 3 9 27 81 243 5281 15843 37957 47529 113871 142587 341613 427761 1024839 1283283 3074517 9223551 200450917 601352751 1804058253 5412174759 16236524277 48709572831