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211680604799 = 3759711578699
BaseRepresentation
bin1100010100100100100…
…1011011001001111111
3202020101101101212222222
43011021021123021333
511432010213323144
6241124505555555
721202433311256
oct3051111331177
9666341355888
10211680604799
11818562014a4
12350374a5bbb
1316c66254b51
14a36151b79d
15578db542ee
hex314925b27f

211680604799 has 32 divisors (see below), whose sum is σ = 225654336000. Its totient is φ = 198322750080.

The previous prime is 211680604787. The next prime is 211680604823. The reversal of 211680604799 is 997406086112.

It is a cyclic number.

It is not a de Polignac number, because 211680604799 - 24 = 211680604783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211680604799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211680604699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24329552 + ... + 24338250.

It is an arithmetic number, because the mean of its divisors is an integer number (7051698000).

Almost surely, 2211680604799 is an apocalyptic number.

211680604799 is a deficient number, since it is larger than the sum of its proper divisors (13973731201).

211680604799 is a wasteful number, since it uses less digits than its factorization.

211680604799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 211680604799 in words is "two hundred eleven billion, six hundred eighty million, six hundred four thousand, seven hundred ninety-nine".

Divisors: 1 37 59 71 157 2183 2627 4189 5809 8699 9263 11147 154993 321863 342731 412439 513241 617629 657673 1365743 18989917 22852273 24333901 36440111 50532491 80578837 96967753 1348284107 2981416969 3587806861 5721097427 211680604799