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107157557 = 138242889
BaseRepresentation
bin1100110001100…
…01100000110101
321110122011112102
412120301200311
5204413020212
614344431445
72440552463
oct630614065
9243564472
10107157557
1155540071
122ba78585
131927b650
1410335833
15961a5c2
hex6631835

107157557 has 4 divisors (see below), whose sum is σ = 115400460. Its totient is φ = 98914656.

The previous prime is 107157539. The next prime is 107157571. The reversal of 107157557 is 755751701.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44209201 + 62948356 = 6649^2 + 7934^2 .

It is a cyclic number.

It is not a de Polignac number, because 107157557 - 212 = 107153461 is a prime.

It is a super-2 number, since 2×1071575572 = 22965484044416498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107157557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107157527) 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, 4121432 + ... + 4121457.

It is an arithmetic number, because the mean of its divisors is an integer number (28850115).

Almost surely, 2107157557 is an apocalyptic number.

It is an amenable number.

107157557 is a deficient number, since it is larger than the sum of its proper divisors (8242903).

107157557 is an equidigital number, since it uses as much as digits as its factorization.

107157557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242902.

The product of its (nonzero) digits is 42875, while the sum is 38.

The square root of 107157557 is about 10351.6934363417. The cubic root of 107157557 is about 474.9788459647.

The spelling of 107157557 in words is "one hundred seven million, one hundred fifty-seven thousand, five hundred fifty-seven".

Divisors: 1 13 8242889 107157557