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100628713 = 123781349
BaseRepresentation
bin1011111111101…
…11100011101001
321000100110122101
411333313203221
5201230104323
613552453401
72331221113
oct577674351
9230313571
10100628713
1151890929
122984a261
1317b03a23
14d5163b3
158c7adad
hex5ff78e9

100628713 has 4 divisors (see below), whose sum is σ = 100711300. Its totient is φ = 100546128.

The previous prime is 100628687. The next prime is 100628741. The reversal of 100628713 is 317826001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29192409 + 71436304 = 5403^2 + 8452^2 .

It is a cyclic number.

It is not a de Polignac number, because 100628713 - 25 = 100628681 is a prime.

It is a super-2 number, since 2×1006287132 = 20252275760072738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100628113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39438 + ... + 41911.

It is an arithmetic number, because the mean of its divisors is an integer number (25177825).

Almost surely, 2100628713 is an apocalyptic number.

It is an amenable number.

100628713 is a deficient number, since it is larger than the sum of its proper divisors (82587).

100628713 is an equidigital number, since it uses as much as digits as its factorization.

100628713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82586.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 100628713 is about 10031.3863947114. The cubic root of 100628713 is about 465.1295942795.

The spelling of 100628713 in words is "one hundred million, six hundred twenty-eight thousand, seven hundred thirteen".

Divisors: 1 1237 81349 100628713