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380386290 = 23512679543
BaseRepresentation
bin10110101011000…
…011101111110010
3222111202121220010
4112223003233302
51234334330130
6101424555350
712266141634
oct2653035762
9874677803
10380386290
11185799939
12a7482b56
1360a64c5b
143873aa54
15235dc0b0
hex16ac3bf2

380386290 has 16 divisors (see below), whose sum is σ = 912927168. Its totient is φ = 101436336.

The previous prime is 380386273. The next prime is 380386291. The reversal of 380386290 is 92683083.

It is not an unprimeable number, because it can be changed into a prime (380386291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6339742 + ... + 6339801.

It is an arithmetic number, because the mean of its divisors is an integer number (57057948).

Almost surely, 2380386290 is an apocalyptic number.

380386290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

380386290 is an abundant number, since it is smaller than the sum of its proper divisors (532540878).

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

380386290 is a wasteful number, since it uses less digits than its factorization.

380386290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679553.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 380386290 is about 19503.4943023039. The cubic root of 380386290 is about 724.5609962167.

The spelling of 380386290 in words is "three hundred eighty million, three hundred eighty-six thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 12679543 25359086 38038629 63397715 76077258 126795430 190193145 380386290