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1912354344 = 2332171562381
BaseRepresentation
bin111000111111100…
…0011011000101000
311221021102122222200
41301333003120220
512404030314334
6513432220200
765250513045
oct16177033050
94837378880
101912354344
118a152413a
1245453a660
1324626ac24
14141da21cc
15b2d4d799
hex71fc3628

1912354344 has 48 divisors (see below), whose sum is σ = 5483960820. Its totient is φ = 599953920.

The previous prime is 1912354333. The next prime is 1912354363. The reversal of 1912354344 is 4434532191.

1912354344 is a `hidden beast` number, since 1 + 91 + 23 + 543 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1910564100 + 1790244 = 43710^2 + 1338^2 .

It is a super-3 number, since 3×19123543443 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1912354299 and 1912354308.

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, 779967 + ... + 782414.

Almost surely, 21912354344 is an apocalyptic number.

It is an amenable number.

1912354344 is an abundant number, since it is smaller than the sum of its proper divisors (3571606476).

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

1912354344 is a wasteful number, since it uses less digits than its factorization.

1912354344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562410 (or 1562403 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1912354344 is about 43730.4738597697. The cubic root of 1912354344 is about 1241.2410277340.

The spelling of 1912354344 in words is "one billion, nine hundred twelve million, three hundred fifty-four thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 1562381 3124762 4687143 6249524 9374286 12499048 14061429 18748572 26560477 28122858 37497144 53120954 56245716 79681431 106241908 112491432 159362862 212483816 239044293 318725724 478088586 637451448 956177172 1912354344