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107217221215 = 5131787923053
BaseRepresentation
bin110001111011010100…
…1001111011001011111
3101020202011010011112011
41203312221033121133
53224040102034330
6121131021052051
710513641225526
oct1436651173137
9336664104464
10107217221215
114151a365235
12189429b7027
13a158b1c340
1452917a34bd
152bc7b6082a
hex18f6a4f65f

107217221215 has 16 divisors (see below), whose sum is σ = 138635326368. Its totient is φ = 79131401856.

The previous prime is 107217221201. The next prime is 107217221219. The reversal of 107217221215 is 512122712701.

It is not a de Polignac number, because 107217221215 - 213 = 107217213023 is a prime.

It is a super-2 number, since 2×1072172212152 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107217221219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345372 + ... + 577681.

It is an arithmetic number, because the mean of its divisors is an integer number (8664707898).

Almost surely, 2107217221215 is an apocalyptic number.

107217221215 is a deficient number, since it is larger than the sum of its proper divisors (31418105153).

107217221215 is a wasteful number, since it uses less digits than its factorization.

107217221215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924858.

The product of its (nonzero) digits is 3920, while the sum is 31.

Adding to 107217221215 its reverse (512122712701), we get a palindrome (619339933916).

The spelling of 107217221215 in words is "one hundred seven billion, two hundred seventeen million, two hundred twenty-one thousand, two hundred fifteen".

Divisors: 1 5 13 65 1787 8935 23231 116155 923053 4615265 11999689 59998445 1649495711 8247478555 21443444243 107217221215