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197268812672 = 271981113821
BaseRepresentation
bin1011011110111000100…
…0110011001110000000
3200212012000001222211012
42313232020303032000
511213001304001142
6230342443140052
720152335145511
oct2675610631600
9625160058735
10197268812672
1176730113798
1232294b14628
13157aa5361b9
149795490a08
1551e87cd882
hex2dee233380

197268812672 has 32 divisors (see below), whose sum is σ = 413680492200. Its totient is φ = 93443120640.

The previous prime is 197268812633. The next prime is 197268812681. The reversal of 197268812672 is 276218862791.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40554479 + ... + 40559342.

Almost surely, 2197268812672 is an apocalyptic number.

It is an amenable number.

197268812672 is an abundant number, since it is smaller than the sum of its proper divisors (216411679528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197268812672 is an equidigital number, since it uses as much as digits as its factorization.

197268812672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81113854 (or 81113842 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 59.

The spelling of 197268812672 in words is "one hundred ninety-seven billion, two hundred sixty-eight million, eight hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 304 608 1216 2432 81113821 162227642 324455284 648910568 1297821136 1541162599 2595642272 3082325198 5191284544 6164650396 10382569088 12329300792 24658601584 49317203168 98634406336 197268812672