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13570450 = 252271409
BaseRepresentation
bin110011110001…
…000110010010
3221112110011021
4303301012102
511433223300
61202510054
7223226665
oct63610622
927473137
1013570450
117729753
12466532a
132a71a6a
141b336dc
1512d0d1a
hexcf1192

13570450 has 12 divisors (see below), whose sum is σ = 25241130. Its totient is φ = 5428160.

The previous prime is 13570441. The next prime is 13570477. The reversal of 13570450 is 5407531.

It can be written as a sum of positive squares in 3 ways, for example, as 11607649 + 1962801 = 3407^2 + 1401^2 .

It is a super-2 number, since 2×135704502 = 368314226405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135655 + ... + 135754.

Almost surely, 213570450 is an apocalyptic number.

13570450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13570450 is a deficient number, since it is larger than the sum of its proper divisors (11670680).

13570450 is a wasteful number, since it uses less digits than its factorization.

13570450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271421 (or 271416 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 13570450 is about 3683.8091698675. The cubic root of 13570450 is about 238.5236334730.

Adding to 13570450 its reverse (5407531), we get a palindrome (18977981).

The spelling of 13570450 in words is "thirteen million, five hundred seventy thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 271409 542818 1357045 2714090 6785225 13570450