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1380038460 = 223523000641
BaseRepresentation
bin101001001000001…
…1011011100111100
310120011210012212120
41102100123130330
510311242212320
6344535002540
746125063513
oct12220333474
93504705776
101380038460
11648aa5359
12326209450
1318cbaca08
14d13d767a
1581250440
hex5241b73c

1380038460 has 24 divisors (see below), whose sum is σ = 3864107856. Its totient is φ = 368010240.

The previous prime is 1380038459. The next prime is 1380038477. The reversal of 1380038460 is 648300831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11500261 + ... + 11500380.

It is an arithmetic number, because the mean of its divisors is an integer number (161004494).

Almost surely, 21380038460 is an apocalyptic number.

1380038460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380038460 is an abundant number, since it is smaller than the sum of its proper divisors (2484069396).

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

1380038460 is a wasteful number, since it uses less digits than its factorization.

1380038460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000653 (or 23000651 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1380038460 is about 37148.8688926056. The cubic root of 1380038460 is about 1113.3466241576.

The spelling of 1380038460 in words is "one billion, three hundred eighty million, thirty-eight thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 23000641 46001282 69001923 92002564 115003205 138003846 230006410 276007692 345009615 460012820 690019230 1380038460