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1380188152 = 23726479311
BaseRepresentation
bin101001001000011…
…1111111111111000
310120012001211012201
41102100333333320
510311312010102
6344542115544
746126256110
oct12220777770
93505054181
101380188152
11649097872
1232627bbb4
1318cc32ba5
14d1436040
158127e987
hex5243fff8

1380188152 has 32 divisors (see below), whose sum is σ = 2958981120. Its totient is φ = 591222240.

The previous prime is 1380188149. The next prime is 1380188153. The reversal of 1380188152 is 2518810831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380188153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143577 + ... + 152887.

It is an arithmetic number, because the mean of its divisors is an integer number (92468160).

Almost surely, 21380188152 is an apocalyptic number.

It is an amenable number.

1380188152 is an abundant number, since it is smaller than the sum of its proper divisors (1578792968).

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

1380188152 is a wasteful number, since it uses less digits than its factorization.

1380188152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11971 (or 11967 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 1380188152 is about 37150.8835964907. The cubic root of 1380188152 is about 1113.3868773974.

Adding to 1380188152 its reverse (2518810831), we get a palindrome (3898998983).

The spelling of 1380188152 in words is "one billion, three hundred eighty million, one hundred eighty-eight thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 2647 5294 9311 10588 18529 18622 21176 37058 37244 65177 74116 74488 130354 148232 260708 521416 24646217 49292434 98584868 172523519 197169736 345047038 690094076 1380188152