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107621645 = 5178271531
BaseRepresentation
bin1100110101000…
…10110100001101
321111111202010212
412122202310031
5210022343040
614402412205
72444524505
oct632426415
9244452125
10107621645
115582780a
1230061065
13193b1961
1410416a05
1596acd65
hex66a2d0d

107621645 has 16 divisors (see below), whose sum is σ = 136997568. Its totient is φ = 80881920.

The previous prime is 107621617. The next prime is 107621651. The reversal of 107621645 is 546126701.

It is not a de Polignac number, because 107621645 - 210 = 107620621 is a prime.

It is a super-3 number, since 3×1076216453 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69530 + ... + 71060.

It is an arithmetic number, because the mean of its divisors is an integer number (8562348).

Almost surely, 2107621645 is an apocalyptic number.

It is an amenable number.

107621645 is a deficient number, since it is larger than the sum of its proper divisors (29375923).

107621645 is a wasteful number, since it uses less digits than its factorization.

107621645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 107621645 is about 10374.0852608796. The cubic root of 107621645 is about 475.6635527640.

The spelling of 107621645 in words is "one hundred seven million, six hundred twenty-one thousand, six hundred forty-five".

Divisors: 1 5 17 85 827 1531 4135 7655 14059 26027 70295 130135 1266137 6330685 21524329 107621645