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268912072212 = 223724841128873
BaseRepresentation
bin1111101001110001101…
…0001001011000010100
3221201002221111200000020
43322130122021120110
513401212442302322
6323311514545140
725266614620350
oct3723432113024
9851087450006
10268912072212
11a4054943aa3
124414a1381b0
131c487251974
14d03041c460
156edd2d605c
hex3e9c689614

268912072212 has 48 divisors (see below), whose sum is σ = 717133291392. Its totient is φ = 76828331520.

The previous prime is 268912072211. The next prime is 268912072229. The reversal of 268912072212 is 212270219862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268912072211) 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, 2022208 + ... + 2151080.

It is an arithmetic number, because the mean of its divisors is an integer number (14940276904).

Almost surely, 2268912072212 is an apocalyptic number.

It is an amenable number.

268912072212 is an abundant number, since it is smaller than the sum of its proper divisors (448221219180).

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

268912072212 is a wasteful number, since it uses less digits than its factorization.

268912072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153728 (or 153726 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 268912072212 in words is "two hundred sixty-eight billion, nine hundred twelve million, seventy-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 24841 49682 74523 99364 128873 149046 173887 257746 298092 347774 386619 515492 521661 695548 773238 902111 1043322 1546476 1804222 2086644 2706333 3608444 5412666 10825332 3201334193 6402668386 9604002579 12805336772 19208005158 22409339351 38416010316 44818678702 67228018053 89637357404 134456036106 268912072212