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109054057 = 722225593
BaseRepresentation
bin1101000000000…
…00100001101001
321121012112001011
412200000201221
5210404212212
614453223521
72462641600
oct640004151
9247175034
10109054057
1156615a22
1230631ba1
1319793938
14106aaa37
1598924a7
hex6800869

109054057 has 6 divisors (see below), whose sum is σ = 126858858. Its totient is φ = 93474864.

The previous prime is 109054039. The next prime is 109054087. The reversal of 109054057 is 750450901.

It can be written as a sum of positive squares in only one way, i.e., 108493056 + 561001 = 10416^2 + 749^2 .

It is a de Polignac number, because none of the positive numbers 2k-109054057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109054037) 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, 1112748 + ... + 1112845.

It is an arithmetic number, because the mean of its divisors is an integer number (21143143).

Almost surely, 2109054057 is an apocalyptic number.

It is an amenable number.

109054057 is a deficient number, since it is larger than the sum of its proper divisors (17804801).

109054057 is an equidigital number, since it uses as much as digits as its factorization.

109054057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225607 (or 2225600 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 109054057 is about 10442.8950487880. The cubic root of 109054057 is about 477.7645721827.

The spelling of 109054057 in words is "one hundred nine million, fifty-four thousand, fifty-seven".

Divisors: 1 7 49 2225593 15579151 109054057