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380146812 = 223132123981
BaseRepresentation
bin10110101010001…
…001010001111100
3222111022110101120
4112222021101330
51234304144222
6101415510540
712264123513
oct2652112174
9874273346
10380146812
11185645a21
12a7388450
13609acc56
14386b767a
152359115c
hex16a8947c

380146812 has 24 divisors (see below), whose sum is σ = 887717712. Its totient is φ = 126614400.

The previous prime is 380146799. The next prime is 380146841. The reversal of 380146812 is 218641083.

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, 3862 + ... + 27842.

It is an arithmetic number, because the mean of its divisors is an integer number (36988238).

Almost surely, 2380146812 is an apocalyptic number.

It is an amenable number.

380146812 is an abundant number, since it is smaller than the sum of its proper divisors (507570900).

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

380146812 is a wasteful number, since it uses less digits than its factorization.

380146812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25309 (or 25307 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 380146812 is about 19497.3539743217. The cubic root of 380146812 is about 724.4089114817.

Adding to 380146812 its reverse (218641083), we get a palindrome (598787895).

The spelling of 380146812 in words is "three hundred eighty million, one hundred forty-six thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 1321 2642 3963 5284 7926 15852 23981 47962 71943 95924 143886 287772 31678901 63357802 95036703 126715604 190073406 380146812