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2801330272 = 25138298123
BaseRepresentation
bin1010011011111000…
…1110100001100000
321020020012022201001
42212332032201200
521214120032042
61141550121344
7126263625436
oct24676164140
97206168631
102801330272
111208306994
126621b0254
133584a48a0
141c808cd56
15115dedbb7
hexa6f8e860

2801330272 has 48 divisors (see below), whose sum is σ = 5947255440. Its totient is φ = 1291203072.

The previous prime is 2801330249. The next prime is 2801330293. The reversal of 2801330272 is 2720331082.

It is a self number, because there is not a number n which added to its sum of digits gives 2801330272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340803 + ... + 348925.

It is an arithmetic number, because the mean of its divisors is an integer number (123901155).

Almost surely, 22801330272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2801330272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2973627720).

2801330272 is an abundant number, since it is smaller than the sum of its proper divisors (3145925168).

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

2801330272 is a wasteful number, since it uses less digits than its factorization.

2801330272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8975 (or 8967 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2801330272 is about 52927.5946175528. The cubic root of 2801330272 is about 1409.6829211730.

It can be divided in two parts, 28013 and 30272, that added together give a palindrome (58285).

The spelling of 2801330272 in words is "two billion, eight hundred one million, three hundred thirty thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 829 1658 3316 6632 8123 10777 13264 16246 21554 26528 32492 43108 64984 86216 105599 129968 172432 211198 259936 344864 422396 844792 1689584 3379168 6733967 13467934 26935868 53871736 87541571 107743472 175083142 215486944 350166284 700332568 1400665136 2801330272