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99218417207 = 7138531278209
BaseRepresentation
bin101110001100111100…
…0001110011000110111
3100111002200221211012212
41130121320032120313
53111144403322312
6113325203004035
710111503426320
oct1343170163067
9314080854185
1099218417207
1139095234408
121729006961b
139482907710
144b3332b447
1528aa7ee822
hex1719e0e637

99218417207 has 16 divisors (see below), whose sum is σ = 122258230080. Its totient is φ = 78410391552.

The previous prime is 99218417203. The next prime is 99218417209. The reversal of 99218417207 is 70271481299.

It is a cyclic number.

It is not a de Polignac number, because 99218417207 - 22 = 99218417203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99218417203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561482 + ... + 716727.

It is an arithmetic number, because the mean of its divisors is an integer number (7641139380).

Almost surely, 299218417207 is an apocalyptic number.

99218417207 is a deficient number, since it is larger than the sum of its proper divisors (23039812873).

99218417207 is a wasteful number, since it uses less digits than its factorization.

99218417207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279082.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 99218417207 in words is "ninety-nine billion, two hundred eighteen million, four hundred seventeen thousand, two hundred seven".

Divisors: 1 7 13 91 853 5971 11089 77623 1278209 8947463 16616717 116317019 1090312277 7632185939 14174059601 99218417207