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5145231760 = 24564315397
BaseRepresentation
bin1001100101010111…
…00000000110010000
3111021120122212002021
410302223200012100
541014134404020
62210320101224
7241334514454
oct46253400620
914246585067
105145231760
112200392859
12bb7164814
1363cc7b346
1436b4a8664
15201a931aa
hex132ae0190

5145231760 has 20 divisors (see below), whose sum is σ = 11962664028. Its totient is φ = 2058092672.

The previous prime is 5145231743. The next prime is 5145231761. The reversal of 5145231760 is 671325415.

It can be written as a sum of positive squares in 2 ways, for example, as 2727346176 + 2417885584 = 52224^2 + 49172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×51452317602 = 52946819728225395200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5145231761) 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, 32157619 + ... + 32157778.

Almost surely, 25145231760 is an apocalyptic number.

It is an amenable number.

5145231760 is an abundant number, since it is smaller than the sum of its proper divisors (6817432268).

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

5145231760 is a wasteful number, since it uses less digits than its factorization.

5145231760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64315410 (or 64315404 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 5145231760 is about 71730.2708763880. The cubic root of 5145231760 is about 1726.3743731528.

The spelling of 5145231760 in words is "five billion, one hundred forty-five million, two hundred thirty-one thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 64315397 128630794 257261588 321576985 514523176 643153970 1029046352 1286307940 2572615880 5145231760