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82640211867676 = 22121555316996423
BaseRepresentation
bin10010110010100100101100…
…011110001111100000011100
3101211121022211110021110101201
4102302210230132033200130
541312434123214231201
6451432220023445244
723256362326530301
oct2262445436174034
9354538743243351
1082640211867676
112437157619a911
1293282878b6824
133715c27c87318
141659b440870a8
159849dcb6b801
hex4b292c78f81c

82640211867676 has 12 divisors (see below), whose sum is σ = 144620498252272. Its totient is φ = 41320069509888.

The previous prime is 82640211867673. The next prime is 82640211867761. The reversal of 82640211867676 is 67676811204628.

It is a super-3 number, since 3×826402118676763 (a number of 43 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82640211867673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3636000 + ... + 13360423.

Almost surely, 282640211867676 is an apocalyptic number.

It is an amenable number.

82640211867676 is a deficient number, since it is larger than the sum of its proper divisors (61980286384596).

82640211867676 is a wasteful number, since it uses less digits than its factorization.

82640211867676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18211980 (or 18211978 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 82640211867676 in words is "eighty-two trillion, six hundred forty billion, two hundred eleven million, eight hundred sixty-seven thousand, six hundred seventy-six".

Divisors: 1 2 4 1215553 2431106 4862212 16996423 33992846 67985692 20660052966919 41320105933838 82640211867676