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380052409 = 113285539
BaseRepresentation
bin10110101001110…
…010001110111001
3222111010122220011
4112221302032321
51234243134114
6101413501521
712263251342
oct2651621671
9874118804
10380052409
11185591000
12a73418a1
1360978ca9
14386910c9
15235731c4
hex16a723b9

380052409 has 8 divisors (see below), whose sum is σ = 418030560. Its totient is φ = 345500980.

The previous prime is 380052401. The next prime is 380052427. The reversal of 380052409 is 904250083.

It is not a de Polignac number, because 380052409 - 23 = 380052401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380052401) 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, 141439 + ... + 144100.

It is an arithmetic number, because the mean of its divisors is an integer number (52253820).

Almost surely, 2380052409 is an apocalyptic number.

It is an amenable number.

380052409 is a deficient number, since it is larger than the sum of its proper divisors (37978151).

380052409 is an equidigital number, since it uses as much as digits as its factorization.

380052409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285572 (or 285550 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 380052409 is about 19494.9329057578. The cubic root of 380052409 is about 724.3489416368.

The spelling of 380052409 in words is "three hundred eighty million, fifty-two thousand, four hundred nine".

Divisors: 1 11 121 1331 285539 3140929 34550219 380052409