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1383798868 = 221492923173
BaseRepresentation
bin101001001111011…
…0001100001010100
310120102212021011221
41102132301201110
510313223030433
6345151340124
746202045014
oct12236614124
93512767157
101383798868
11650133631
12327521644
131908c84ca
14d1ad5c44
158174472d
hex527b1854

1383798868 has 12 divisors (see below), whose sum is σ = 2421914740. Its totient is φ = 691823232.

The previous prime is 1383798851. The next prime is 1383798919. The reversal of 1383798868 is 8688973831.

It can be written as a sum of positive squares in 2 ways, for example, as 503015184 + 880783684 = 22428^2 + 29678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48130 + ... + 71302.

Almost surely, 21383798868 is an apocalyptic number.

It is an amenable number.

1383798868 is a deficient number, since it is larger than the sum of its proper divisors (1038115872).

1383798868 is a wasteful number, since it uses less digits than its factorization.

1383798868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38106 (or 38104 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 61.

The square root of 1383798868 is about 37199.4471464295. The cubic root of 1383798868 is about 1114.3569439798.

The spelling of 1383798868 in words is "one billion, three hundred eighty-three million, seven hundred ninety-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 14929 23173 29858 46346 59716 92692 345949717 691899434 1383798868