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993832472825 = 52159732488781
BaseRepresentation
bin11100111011001010000…
…10000001000011111001
310112000020220010120201122
432131211002001003321
5112240332103112300
62040321010555025
7131542044431153
oct16354502010371
93460226116648
10993832472825
113535335814a5
12140740598a75
13729445a518a
143615d2a9ad3
151acba08ac85
hexe7650810f9

993832472825 has 12 divisors (see below), whose sum is σ = 1232429913708. Its totient is φ = 795015883200.

The previous prime is 993832472821. The next prime is 993832472839. The reversal of 993832472825 is 528274238399.

It can be written as a sum of positive squares in 6 ways, for example, as 43150921984 + 950681550841 = 207728^2 + 975029^2 .

It is not a de Polignac number, because 993832472825 - 22 = 993832472821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993832472821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845066 + ... + 1643715.

It is an arithmetic number, because the mean of its divisors is an integer number (102702492809).

Almost surely, 2993832472825 is an apocalyptic number.

It is an amenable number.

993832472825 is a deficient number, since it is larger than the sum of its proper divisors (238597440883).

993832472825 is a wasteful number, since it uses less digits than its factorization.

993832472825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504764 (or 2504759 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The spelling of 993832472825 in words is "nine hundred ninety-three billion, eight hundred thirty-two million, four hundred seventy-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 15973 79865 399325 2488781 12443905 62219525 39753298913 198766494565 993832472825