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13557070 = 251971353
BaseRepresentation
bin110011101101…
…110101001110
3221111202210201
4303231311032
511432311240
61202324114
7223142662
oct63556516
927452721
1013557070
11771a69a
12465963a
132a68947
141b2c8a2
1512cbd9a
hexcedd4e

13557070 has 16 divisors (see below), whose sum is σ = 25687440. Its totient is φ = 5137344.

The previous prime is 13557023. The next prime is 13557073. The reversal of 13557070 is 7075531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13557073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35487 + ... + 35866.

It is an arithmetic number, because the mean of its divisors is an integer number (1605465).

Almost surely, 213557070 is an apocalyptic number.

13557070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13557070 is a deficient number, since it is larger than the sum of its proper divisors (12130370).

13557070 is a wasteful number, since it uses less digits than its factorization.

13557070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71379.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 13557070 is about 3681.9926670215. The cubic root of 13557070 is about 238.4452156441.

The spelling of 13557070 in words is "thirteen million, five hundred fifty-seven thousand, seventy".

Divisors: 1 2 5 10 19 38 95 190 71353 142706 356765 713530 1355707 2711414 6778535 13557070