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1368598925 = 5254743957
BaseRepresentation
bin101000110010011…
…0010100110001101
310112101021000210002
41101210302212031
510300330131200
6343445454045
745625620221
oct12144624615
93471230702
101368598925
116425a16a1
12322411325
1318a705b65
14cda9a781
1580240bd5
hex5193298d

1368598925 has 6 divisors (see below), whose sum is σ = 1697062698. Its totient is φ = 1094879120.

The previous prime is 1368598873. The next prime is 1368598927. The reversal of 1368598925 is 5298958631.

It can be written as a sum of positive squares in 3 ways, for example, as 179935396 + 1188663529 = 13414^2 + 34477^2 .

It is not a de Polignac number, because 1368598925 - 28 = 1368598669 is a prime.

It is a super-2 number, since 2×13685989252 = 3746126035022311250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368598927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27371954 + ... + 27372003.

It is an arithmetic number, because the mean of its divisors is an integer number (282843783).

Almost surely, 21368598925 is an apocalyptic number.

It is an amenable number.

1368598925 is a deficient number, since it is larger than the sum of its proper divisors (328463773).

1368598925 is an equidigital number, since it uses as much as digits as its factorization.

1368598925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54743967 (or 54743962 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 56.

The square root of 1368598925 is about 36994.5796705409. The cubic root of 1368598925 is about 1110.2618014620.

The spelling of 1368598925 in words is "one billion, three hundred sixty-eight million, five hundred ninety-eight thousand, nine hundred twenty-five".

Divisors: 1 5 25 54743957 273719785 1368598925