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2801392 = 241121447
BaseRepresentation
bin1010101011111011110000
312021022210021
422223323300
51204121032
6140013224
732545216
oct12537360
95238707
102801392
111643800
12b31214
13771139
1452ccb6
153a5097
hex2abef0

2801392 has 30 divisors (see below), whose sum is σ = 5970104. Its totient is φ = 1272480.

The previous prime is 2801369. The next prime is 2801401. The reversal of 2801392 is 2931082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1213 + ... + 2659.

22801392 is an apocalyptic number.

2801392 is a gapful number since it is divisible by the number (22) 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 2801392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2985052).

2801392 is an abundant number, since it is smaller than the sum of its proper divisors (3168712).

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

2801392 is a wasteful number, since it uses less digits than its factorization.

2801392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2801392 is about 1673.7359409417. The cubic root of 2801392 is about 140.9693275333.

The spelling of 2801392 in words is "two million, eight hundred one thousand, three hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 44 88 121 176 242 484 968 1447 1936 2894 5788 11576 15917 23152 31834 63668 127336 175087 254672 350174 700348 1400696 2801392