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72025523560 = 2351800638089
BaseRepresentation
bin100001100010100001…
…1100100010101101000
320212220120201200211201
41003011003210111220
52140002013223220
653031004533544
75126600564104
oct1030503442550
9225816650751
1072025523560
1128600591991
1211b612512b4
136a3ac8a2c3
1436b3a36904
151d18365d0a
hex10c50e4568

72025523560 has 16 divisors (see below), whose sum is σ = 162057428100. Its totient is φ = 28810209408.

The previous prime is 72025523519. The next prime is 72025523561. The reversal of 72025523560 is 6532552027.

It can be written as a sum of positive squares in 2 ways, for example, as 71366985316 + 658538244 = 267146^2 + 25662^2 .

It is not an unprimeable number, because it can be changed into a prime (72025523561) 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, 900319005 + ... + 900319084.

Almost surely, 272025523560 is an apocalyptic number.

It is an amenable number.

72025523560 is an abundant number, since it is smaller than the sum of its proper divisors (90031904540).

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

72025523560 is a wasteful number, since it uses less digits than its factorization.

72025523560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800638100 (or 1800638096 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 72025523560 in words is "seventy-two billion, twenty-five million, five hundred twenty-three thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1800638089 3601276178 7202552356 9003190445 14405104712 18006380890 36012761780 72025523560