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254436993668 = 221113607732817
BaseRepresentation
bin1110110011110110100…
…0000110101010000100
3220022202011002111012002
43230331220012222010
513132041332244133
6312515311444432
724245120522234
oct3547550065204
9808664074162
10254436993668
11989a7060270
124138a526718
131acbb3a5230
14c459bd9cc4
15694260dce8
hex3b3da06a84

254436993668 has 48 divisors (see below), whose sum is σ = 523970732544. Its totient is φ = 106580759040.

The previous prime is 254436993649. The next prime is 254436993683. The reversal of 254436993668 is 866399634452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19205 + ... + 713612.

It is an arithmetic number, because the mean of its divisors is an integer number (10916056928).

Almost surely, 2254436993668 is an apocalyptic number.

It is an amenable number.

254436993668 is an abundant number, since it is smaller than the sum of its proper divisors (269533738876).

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

254436993668 is a wasteful number, since it uses less digits than its factorization.

254436993668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733452 (or 733450 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 65.

The spelling of 254436993668 in words is "two hundred fifty-four billion, four hundred thirty-six million, nine hundred ninety-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 607 1214 2428 6677 7891 13354 15782 26708 31564 86801 173602 347204 732817 1465634 2931268 8060987 9526621 16121974 19053242 32243948 38106484 104792831 209585662 419171324 444819919 889639838 1779279676 4893019109 5782658947 9786038218 11565317894 19572076436 23130635788 63609248417 127218496834 254436993668