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107490391 = 195657389
BaseRepresentation
bin1100110100000…
…10110001010111
321111021002002121
412122002301113
5210004143031
614355520411
72443440031
oct632026127
9244232077
10107490391
1155748138
122bbb9107
1319366ca8
14103c0c51
159684011
hex6682c57

107490391 has 4 divisors (see below), whose sum is σ = 113147800. Its totient is φ = 101832984.

The previous prime is 107490377. The next prime is 107490401. The reversal of 107490391 is 193094701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193094701 = 1910162879.

It is a cyclic number.

It is not a de Polignac number, because 107490391 - 225 = 73935959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107490991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2828676 + ... + 2828713.

It is an arithmetic number, because the mean of its divisors is an integer number (28286950).

Almost surely, 2107490391 is an apocalyptic number.

107490391 is a deficient number, since it is larger than the sum of its proper divisors (5657409).

107490391 is an equidigital number, since it uses as much as digits as its factorization.

107490391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657408.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 107490391 is about 10367.7572791805. The cubic root of 107490391 is about 475.4701030111.

The spelling of 107490391 in words is "one hundred seven million, four hundred ninety thousand, three hundred ninety-one".

Divisors: 1 19 5657389 107490391