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28107303294 = 23717296913259
BaseRepresentation
bin11010001011010100…
…110110100101111110
32200112211211221121010
4122023110312211332
5430030432201134
620525021020050
72013345064440
oct321324664576
980484757533
1028107303294
1110a13926a84
1255450b4626
13285c21a815
141508d22490
15ae78aece9
hex68b53697e

28107303294 has 64 divisors (see below), whose sum is σ = 68052441600. Its totient is φ = 7555150848.

The previous prime is 28107303251. The next prime is 28107303349. The reversal of 28107303294 is 49230370182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2113237 + ... + 2126495.

It is an arithmetic number, because the mean of its divisors is an integer number (1063319400).

Almost surely, 228107303294 is an apocalyptic number.

28107303294 is an abundant number, since it is smaller than the sum of its proper divisors (39945138306).

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

28107303294 is a wasteful number, since it uses less digits than its factorization.

28107303294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16257.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 28107303294 in words is "twenty-eight billion, one hundred seven million, three hundred three thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 2969 5938 8907 13259 17814 20783 26518 39777 41566 50473 62349 79554 92813 100946 124698 151419 185626 225403 278439 302838 353311 450806 556878 676209 706622 1059933 1352418 1577821 2119866 3155642 4733463 9466926 39365971 78731942 118097913 236195826 275561797 551123594 669221507 826685391 1338443014 1653370782 2007664521 4015329042 4684550549 9369101098 14053651647 28107303294