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1380132730 = 25433209611
BaseRepresentation
bin101001001000011…
…0010011101111010
310120011222000012001
41102100302131322
510311303221410
6344541011214
746125635404
oct12220623572
93504860161
101380132730
1164905a169
12326253b0a
1318cc138b2
14d141db74
158126d33a
hex5243277a

1380132730 has 16 divisors (see below), whose sum is σ = 2542012704. Its totient is φ = 539214480.

The previous prime is 1380132673. The next prime is 1380132737. The reversal of 1380132730 is 372310831.

It is not an unprimeable number, because it can be changed into a prime (1380132737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604376 + ... + 1605235.

It is an arithmetic number, because the mean of its divisors is an integer number (158875794).

Almost surely, 21380132730 is an apocalyptic number.

1380132730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380132730 is a deficient number, since it is larger than the sum of its proper divisors (1161879974).

1380132730 is a wasteful number, since it uses less digits than its factorization.

1380132730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209661.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1380132730 is about 37150.1376848054. The cubic root of 1380132730 is about 1113.3719743681.

The spelling of 1380132730 in words is "one billion, three hundred eighty million, one hundred thirty-two thousand, seven hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 3209611 6419222 16048055 32096110 138013273 276026546 690066365 1380132730