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1372052135 = 5274410427
BaseRepresentation
bin101000111000111…
…1101101010100111
310112121202110200202
41101301331222213
510302221132020
6344051501115
746000151666
oct12161755247
93477673622
101372052135
11644540093
123235b779b
1318b34488c
14d0318ddd
15806c3e75
hex51c7daa7

1372052135 has 4 divisors (see below), whose sum is σ = 1646462568. Its totient is φ = 1097641704.

The previous prime is 1372052117. The next prime is 1372052137. The reversal of 1372052135 is 5312502731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1372052135 - 210 = 1372051111 is a prime.

It is a super-2 number, since 2×13720521352 = 3765054122316116450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1372052098 and 1372052107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372052137) 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, 137205209 + ... + 137205218.

It is an arithmetic number, because the mean of its divisors is an integer number (411615642).

Almost surely, 21372052135 is an apocalyptic number.

1372052135 is a deficient number, since it is larger than the sum of its proper divisors (274410433).

1372052135 is an equidigital number, since it uses as much as digits as its factorization.

1372052135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274410432.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1372052135 is about 37041.2221045689. Note that the first 3 decimals coincide. The cubic root of 1372052135 is about 1111.1948108855.

Adding to 1372052135 its reverse (5312502731), we get a palindrome (6684554866).

The spelling of 1372052135 in words is "one billion, three hundred seventy-two million, fifty-two thousand, one hundred thirty-five".

Divisors: 1 5 274410427 1372052135