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5072745831 = 315710770161
BaseRepresentation
bin1001011100101101…
…11111010101100111
3111002112021012002020
410232112333111213
540342110331311
62155210314223
7236464425306
oct45626772547
914075235066
105072745831
11217348402a
12b96a28973
1362ac4c16a
143619da43d
151ea525c06
hex12e5bf567

5072745831 has 8 divisors (see below), whose sum is σ = 6806742384. Its totient is φ = 3360289920.

The previous prime is 5072745823. The next prime is 5072745833. The reversal of 5072745831 is 1385472705.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5072745831 - 23 = 5072745823 is a prime.

It is a super-2 number, since 2×50727458312 = 51465500531855761122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072745833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5384610 + ... + 5385551.

It is an arithmetic number, because the mean of its divisors is an integer number (850842798).

Almost surely, 25072745831 is an apocalyptic number.

5072745831 is a deficient number, since it is larger than the sum of its proper divisors (1733996553).

5072745831 is a wasteful number, since it uses less digits than its factorization.

5072745831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770321.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 5072745831 is about 71223.2113218717. The cubic root of 5072745831 is about 1718.2289584189.

The spelling of 5072745831 in words is "five billion, seventy-two million, seven hundred forty-five thousand, eight hundred thirty-one".

Divisors: 1 3 157 471 10770161 32310483 1690915277 5072745831