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380880132 = 22331740011
BaseRepresentation
bin10110101100111…
…100010100000100
3222112200201022120
4112230330110010
51240001131012
6101443325540
712303266463
oct2654742404
9875621276
10380880132
11185aa6976
12a76808b0
1360ba8979
14388289da
152368858c
hex16b3c504

380880132 has 12 divisors (see below), whose sum is σ = 888720336. Its totient is φ = 126960040.

The previous prime is 380880131. The next prime is 380880221. The reversal of 380880132 is 231088083.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 380880093 and 380880102.

It is not an unprimeable number, because it can be changed into a prime (380880131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15869994 + ... + 15870017.

It is an arithmetic number, because the mean of its divisors is an integer number (74060028).

Almost surely, 2380880132 is an apocalyptic number.

It is an amenable number.

380880132 is an abundant number, since it is smaller than the sum of its proper divisors (507840204).

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

380880132 is a wasteful number, since it uses less digits than its factorization.

380880132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31740018 (or 31740016 counting only the distinct ones).

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

The square root of 380880132 is about 19516.1505425635. The cubic root of 380880132 is about 724.8744178837.

The spelling of 380880132 in words is "three hundred eighty million, eight hundred eighty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 31740011 63480022 95220033 126960044 190440066 380880132