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1992307744 = 25785310427
BaseRepresentation
bin111011011000000…
…0011010000100000
312010211212201102201
41312300003100200
513040012321434
6525410022544
7100241223250
oct16660032040
95124781381
101992307744
11932673329
12477277a54
132599b302b
1414c855960
15b9d93614
hex76c03420

1992307744 has 48 divisors (see below), whose sum is σ = 4488378048. Its totient is φ = 852763392.

The previous prime is 1992307729. The next prime is 1992307753. The reversal of 1992307744 is 4477032991.

It is a junction number, because it is equal to n+sod(n) for n = 1992307694 and 1992307703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185859 + ... + 196285.

It is an arithmetic number, because the mean of its divisors is an integer number (93507876).

Almost surely, 21992307744 is an apocalyptic number.

1992307744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1992307744 is an abundant number, since it is smaller than the sum of its proper divisors (2496070304).

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

1992307744 is a wasteful number, since it uses less digits than its factorization.

1992307744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11297 (or 11289 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1992307744 is about 44635.2746602953. The cubic root of 1992307744 is about 1258.3037020677.

The spelling of 1992307744 in words is "one billion, nine hundred ninety-two million, three hundred seven thousand, seven hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 853 1706 3412 5971 6824 10427 11942 13648 20854 23884 27296 41708 47768 72989 83416 95536 145978 166832 191072 291956 333664 583912 1167824 2335648 8894231 17788462 35576924 62259617 71153848 124519234 142307696 249038468 284615392 498076936 996153872 1992307744