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1380054932 = 221369725189
BaseRepresentation
bin101001001000001…
…1111011110010100
310120011211001110122
41102100133132110
510311243224212
6344535211112
746125162524
oct12220373624
93504731418
101380054932
11649006773
12326216a98
1318cbb7369
14d13dd684
1581255272
hex5241f794

1380054932 has 12 divisors (see below), whose sum is σ = 2415368340. Its totient is φ = 689949696.

The previous prime is 1380054919. The next prime is 1380054961. The reversal of 1380054932 is 2394500831.

It can be written as a sum of positive squares in 2 ways, for example, as 667912336 + 712142596 = 25844^2 + 26686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1380054892 and 1380054901.

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, 42194 + ... + 67382.

It is an arithmetic number, because the mean of its divisors is an integer number (201280695).

Almost surely, 21380054932 is an apocalyptic number.

It is an amenable number.

1380054932 is a deficient number, since it is larger than the sum of its proper divisors (1035313408).

1380054932 is a wasteful number, since it uses less digits than its factorization.

1380054932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38890 (or 38888 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1380054932 is about 37149.0905945220. The cubic root of 1380054932 is about 1113.3510537377.

The spelling of 1380054932 in words is "one billion, three hundred eighty million, fifty-four thousand, nine hundred thirty-two".

Divisors: 1 2 4 13697 25189 27394 50378 54788 100756 345013733 690027466 1380054932