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107749225 = 5210939541
BaseRepresentation
bin1100110110000…
…01111101101001
321111202020011001
412123001331221
5210040433400
614405235001
72445565453
oct633017551
9244666131
10107749225
1155904651
1230102a61
1319427a4c
141044b2d3
1596d5a6a
hex66c1f69

107749225 has 12 divisors (see below), whose sum is σ = 134838220. Its totient is φ = 85406400.

The previous prime is 107749223. The next prime is 107749253. The reversal of 107749225 is 522947701.

It can be written as a sum of positive squares in 6 ways, for example, as 15896169 + 91853056 = 3987^2 + 9584^2 .

It is not a de Polignac number, because 107749225 - 21 = 107749223 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (107749223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17046 + ... + 22495.

Almost surely, 2107749225 is an apocalyptic number.

It is an amenable number.

107749225 is a deficient number, since it is larger than the sum of its proper divisors (27088995).

107749225 is a wasteful number, since it uses less digits than its factorization.

107749225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39660 (or 39655 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 107749225 is about 10380.2324155098. The cubic root of 107749225 is about 475.8514368775.

The spelling of 107749225 in words is "one hundred seven million, seven hundred forty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 109 545 2725 39541 197705 988525 4309969 21549845 107749225