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107398457 = 372902661
BaseRepresentation
bin1100110011011…
…00010100111001
321111002101222122
412121230110321
5204443222312
614353531025
72442605015
oct631542471
9244071878
10107398457
1155695061
122bb73a75
13193341aa
1410399545
159666b72
hex666c539

107398457 has 4 divisors (see below), whose sum is σ = 110301156. Its totient is φ = 104495760.

The previous prime is 107398441. The next prime is 107398471. The reversal of 107398457 is 754893701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754893701 = 1375510173.

It can be written as a sum of positive squares in 2 ways, for example, as 52475536 + 54922921 = 7244^2 + 7411^2 .

It is a cyclic number.

It is not a de Polignac number, because 107398457 - 24 = 107398441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107398657) 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, 1451294 + ... + 1451367.

It is an arithmetic number, because the mean of its divisors is an integer number (27575289).

Almost surely, 2107398457 is an apocalyptic number.

It is an amenable number.

107398457 is a deficient number, since it is larger than the sum of its proper divisors (2902699).

107398457 is an equidigital number, since it uses as much as digits as its factorization.

107398457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902698.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 107398457 is about 10363.3226814569. The cubic root of 107398457 is about 475.3345115538.

The spelling of 107398457 in words is "one hundred seven million, three hundred ninety-eight thousand, four hundred fifty-seven".

Divisors: 1 37 2902661 107398457