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28545114260 = 225131912332467
BaseRepresentation
bin11010100101011010…
…111110000010010100
32201200100200001100002
4122211122332002110
5431430022124020
621040300510432
72030242316315
oct324532760224
981610601302
1028545114260
1111118a77923
12564784b418
1328cbb3a470
14154b12a60c
15b21041975
hex6a56be094

28545114260 has 96 divisors (see below), whose sum is σ = 65198794752. Its totient is φ = 10435322880.

The previous prime is 28545114209. The next prime is 28545114287. The reversal of 28545114260 is 6241154582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11569547 + ... + 11572013.

It is an arithmetic number, because the mean of its divisors is an integer number (679154112).

Almost surely, 228545114260 is an apocalyptic number.

28545114260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28545114260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32599397376).

28545114260 is an abundant number, since it is smaller than the sum of its proper divisors (36653680492).

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

28545114260 is a wasteful number, since it uses less digits than its factorization.

28545114260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2911 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 28545114260 in words is "twenty-eight billion, five hundred forty-five million, one hundred fourteen thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 191 233 260 382 466 764 932 955 1165 1910 2330 2467 2483 3029 3820 4660 4934 4966 6058 9868 9932 12116 12335 12415 15145 24670 24830 30290 32071 44503 49340 49660 60580 64142 89006 128284 160355 178012 222515 320710 445030 471197 574811 578539 641420 890060 942394 1149622 1157078 1884788 2299244 2314156 2355985 2874055 2892695 4711970 5748110 5785390 6125561 7472543 9423940 11496220 11570780 12251122 14945086 24502244 29890172 30627805 37362715 61255610 74725430 109788901 122511220 149450860 219577802 439155604 548944505 1097889010 1427255713 2195778020 2854511426 5709022852 7136278565 14272557130 28545114260