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72395234692 = 22111645346243
BaseRepresentation
bin100001101101100010…
…1111001110110000100
320220212100101222011121
41003123011321312010
52141231140002232
653131413043324
75142010225114
oct1033305716604
9226770358147
1072395234692
112878024a380
1212045026544
136a997552a1
14370ab95044
151d3aa44d97
hex10db179d84

72395234692 has 12 divisors (see below), whose sum is σ = 138209084496. Its totient is φ = 32906924840.

The previous prime is 72395234663. The next prime is 72395234693. The reversal of 72395234692 is 29643259327.

It is a super-2 number, since 2×723952346922 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72395234693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822673078 + ... + 822673165.

It is an arithmetic number, because the mean of its divisors is an integer number (11517423708).

Almost surely, 272395234692 is an apocalyptic number.

It is an amenable number.

72395234692 is a deficient number, since it is larger than the sum of its proper divisors (65813849804).

72395234692 is a wasteful number, since it uses less digits than its factorization.

72395234692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645346258 (or 1645346256 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 52.

The spelling of 72395234692 in words is "seventy-two billion, three hundred ninety-five million, two hundred thirty-four thousand, six hundred ninety-two".

Divisors: 1 2 4 11 22 44 1645346243 3290692486 6581384972 18098808673 36197617346 72395234692