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107798513 = 1738916301
BaseRepresentation
bin1100110110011…
…01111111110001
321111211201202112
412123031333301
5210044023023
614410255105
72446162244
oct633157761
9244751675
10107798513
1155938689
1230127495
1319444304
141046125b
1596e5478
hex66cdff1

107798513 has 8 divisors (see below), whose sum is σ = 114440040. Its totient is φ = 101190400.

The previous prime is 107798507. The next prime is 107798521. The reversal of 107798513 is 315897701.

It can be written as a sum of positive squares in 4 ways, for example, as 33269824 + 74528689 = 5768^2 + 8633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 107798513 - 222 = 103604209 is a prime.

It is a super-2 number, since 2×1077985132 = 23241038810022338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (107798503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (14305005).

Almost surely, 2107798513 is an apocalyptic number.

It is an amenable number.

107798513 is a deficient number, since it is larger than the sum of its proper divisors (6641527).

107798513 is a wasteful number, since it uses less digits than its factorization.

107798513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16707.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 107798513 is about 10382.6062720302. The cubic root of 107798513 is about 475.9239824584.

The spelling of 107798513 in words is "one hundred seven million, seven hundred ninety-eight thousand, five hundred thirteen".

Divisors: 1 17 389 6613 16301 277117 6341089 107798513