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1982393234 = 21922745697
BaseRepresentation
bin111011000101000…
…1110101110010010
312010011020000021122
41312022032232102
513024443040414
6524413322242
7100061031053
oct16612165622
95104200248
101982393234
11928011418
12473a96382
13257921363
1414b3d472a
15b9085b8e
hex7628eb92

1982393234 has 12 divisors (see below), whose sum is σ = 3138332814. Its totient is φ = 939028032.

The previous prime is 1982393233. The next prime is 1982393261. The reversal of 1982393234 is 4323932891.

It can be written as a sum of positive squares in only one way, i.e., 1451229025 + 531164209 = 38095^2 + 23047^2 .

It is not an unprimeable number, because it can be changed into a prime (1982393233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1372127 + ... + 1373570.

Almost surely, 21982393234 is an apocalyptic number.

1982393234 is a deficient number, since it is larger than the sum of its proper divisors (1155939580).

1982393234 is a wasteful number, since it uses less digits than its factorization.

1982393234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745737 (or 2745718 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 1982393234 is about 44524.0747686013. The cubic root of 1982393234 is about 1256.2129580788.

The spelling of 1982393234 in words is "one billion, nine hundred eighty-two million, three hundred ninety-three thousand, two hundred thirty-four".

Divisors: 1 2 19 38 361 722 2745697 5491394 52168243 104336486 991196617 1982393234