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28952634720 = 25351719186743
BaseRepresentation
bin11010111101101101…
…100010010101100000
32202201202111020022110
4122331231202111200
5433243333302340
621144535235320
72043321222522
oct327555422540
982652436273
1028952634720
1111308009a99
125740218b40
1329653b2b29
1415892cba12
15b46bdd680
hex6bdb62560

28952634720 has 192 divisors, whose sum is σ = 101648494080. Its totient is φ = 6884057088.

The previous prime is 28952634691. The next prime is 28952634721. The reversal of 28952634720 is 2743625982.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 28952634720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952634721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61669 + ... + 248411.

It is an arithmetic number, because the mean of its divisors is an integer number (529419240).

Almost surely, 228952634720 is an apocalyptic number.

28952634720 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 28952634720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50824247040).

28952634720 is an abundant number, since it is smaller than the sum of its proper divisors (72695859360).

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

28952634720 is a wasteful number, since it uses less digits than its factorization.

28952634720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186797 (or 186789 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 28952634720 in words is "twenty-eight billion, nine hundred fifty-two million, six hundred thirty-four thousand, seven hundred twenty".