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2828451438 = 232730921499
BaseRepresentation
bin1010100010010110…
…1011111001101110
321022010020012221200
42220211223321232
521243040421223
61144355310330
7130043304051
oct25045537156
97263205850
102828451438
11122165047a
1266b2ab3a6
13360cac407
141cb90ca98
151184a9a43
hexa896be6e

2828451438 has 24 divisors (see below), whose sum is σ = 6129435000. Its totient is φ = 942644304.

The previous prime is 2828451391. The next prime is 2828451443. The reversal of 2828451438 is 8341548282.

2828451438 is a `hidden beast` number, since 28 + 2 + 84 + 514 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2828451393 and 2828451402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120813 + ... + 142311.

It is an arithmetic number, because the mean of its divisors is an integer number (255393125).

Almost surely, 22828451438 is an apocalyptic number.

2828451438 is an abundant number, since it is smaller than the sum of its proper divisors (3300983562).

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

2828451438 is a wasteful number, since it uses less digits than its factorization.

2828451438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28816 (or 28813 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 2828451438 is about 53183.1875502024. The cubic root of 2828451438 is about 1414.2176145705.

The spelling of 2828451438 in words is "two billion, eight hundred twenty-eight million, four hundred fifty-one thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 7309 14618 21499 21927 42998 43854 64497 65781 128994 131562 193491 386982 157136191 314272382 471408573 942817146 1414225719 2828451438