Search a number
-
+
28451262750 = 2353181120947
BaseRepresentation
bin11010011111110100…
…111101000100011110
32201102211001220021020
4122133310331010132
5431232010402000
621023105145010
72025022512621
oct323764750436
981384056236
1028451262750
111107aaa5899
12562032b166
1328b556a421
14153c899db8
15b17ba3ba0
hex69fd3d11e

28451262750 has 64 divisors (see below), whose sum is σ = 71056956672. Its totient is φ = 7582452000.

The previous prime is 28451262743. The next prime is 28451262803. The reversal of 28451262750 is 5726215482.

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, 1347777 + ... + 1368723.

It is an arithmetic number, because the mean of its divisors is an integer number (1110264948).

Almost surely, 228451262750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28451262750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35528478336).

28451262750 is an abundant number, since it is smaller than the sum of its proper divisors (42605693922).

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

28451262750 is a wasteful number, since it uses less digits than its factorization.

28451262750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22778 (or 22768 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 28451262750 in words is "twenty-eight billion, four hundred fifty-one million, two hundred sixty-two thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 1811 3622 5433 9055 10866 18110 20947 27165 41894 45275 54330 62841 90550 104735 125682 135825 209470 226375 271650 314205 452750 523675 628410 679125 1047350 1358250 1571025 2618375 3142050 5236750 7855125 15710250 37935017 75870034 113805051 189675085 227610102 379350170 569025255 948375425 1138050510 1896750850 2845126275 4741877125 5690252550 9483754250 14225631375 28451262750