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1930397382 = 232263409997
BaseRepresentation
bin111001100001111…
…1000011011000110
311222112101100101100
41303003320123012
512423140204012
6515315040530
765560051464
oct16303703306
94875340340
101930397382
11900728141
1245a5a0146
13249c17694
1414453b834
15b47148dc
hex730f86c6

1930397382 has 48 divisors (see below), whose sum is σ = 4212917280. Its totient is φ = 638810496.

The previous prime is 1930397369. The next prime is 1930397431. The reversal of 1930397382 is 2837930391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1935708 + ... + 1936704.

It is an arithmetic number, because the mean of its divisors is an integer number (87769110).

Almost surely, 21930397382 is an apocalyptic number.

1930397382 is an abundant number, since it is smaller than the sum of its proper divisors (2282519898).

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

1930397382 is a wasteful number, since it uses less digits than its factorization.

1930397382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 1930397382 is about 43936.2877585260. The cubic root of 1930397382 is about 1245.1325121451.

The spelling of 1930397382 in words is "one billion, nine hundred thirty million, three hundred ninety-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 263 409 526 789 818 997 1227 1578 1994 2367 2454 2991 3681 4734 5982 7362 8973 17946 107567 215134 262211 322701 407773 524422 645402 786633 815546 968103 1223319 1573266 1936206 2359899 2446638 3669957 4719798 7339914 107244299 214488598 321732897 643465794 965198691 1930397382