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1260622472 = 23125532
BaseRepresentation
bin100101100100011…
…1001001010001000
310020212002020221012
41023020321022020
510040204404342
6325031303052
743145054114
oct11310711210
93225066835
101260622472
1159765235a
122b221aa88
1317122b875
14bd5d0744
1575a12b82
hex4b239288

1260622472 has 12 divisors (see below), whose sum is σ = 2363855445. Its totient is φ = 630261024.

The previous prime is 1260622457. The next prime is 1260622477. The reversal of 1260622472 is 2742260621.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 697699396 + 562923076 = 26414^2 + 23726^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=25106.

It is a super-2 number, since 2×12606224722 = 3178338033822781568, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260622477) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 94148 + ... + 106700.

Almost surely, 21260622472 is an apocalyptic number.

It is an amenable number.

1260622472 is a deficient number, since it is larger than the sum of its proper divisors (1103232973).

1260622472 is an frugal number, since it uses more digits than its factorization.

1260622472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25112 (or 12555 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1260622472 is about 35505.2456969389. The cubic root of 1260622472 is about 1080.2601316691.

Multiplying 1260622472 by its sum of digits (32), we get a square (40339919104 = 2008482).

The spelling of 1260622472 in words is "one billion, two hundred sixty million, six hundred twenty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 12553 25106 50212 100424 157577809 315155618 630311236 1260622472