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1380181116 = 223115015093
BaseRepresentation
bin101001001000011…
…1110010001111100
310120012001110120010
41102100332101330
510311311243431
6344542023220
746126226436
oct12220762174
93505043503
101380181116
11649092556
12326277b10
1318cc2c922
14d1433656
158127c846
hex5243e47c

1380181116 has 12 divisors (see below), whose sum is σ = 3220422632. Its totient is φ = 460060368.

The previous prime is 1380181081. The next prime is 1380181133. The reversal of 1380181116 is 6111810831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 57507535 + ... + 57507558.

Almost surely, 21380181116 is an apocalyptic number.

It is an amenable number.

1380181116 is an abundant number, since it is smaller than the sum of its proper divisors (1840241516).

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

1380181116 is a wasteful number, since it uses less digits than its factorization.

1380181116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115015100 (or 115015098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 1380181116 is about 37150.7889014486. The cubic root of 1380181116 is about 1113.3849854323.

Adding to 1380181116 its reverse (6111810831), we get a palindrome (7491991947).

The spelling of 1380181116 in words is "one billion, three hundred eighty million, one hundred eighty-one thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 115015093 230030186 345045279 460060372 690090558 1380181116