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380148136 = 2347518517
BaseRepresentation
bin10110101010001…
…001100110101000
3222111022112012121
4112222021212220
51234304220021
6101415521024
712264130414
oct2652114650
9874275177
10380148136
11185646a15
12a7389174
13609b0734
14386b7d44
1523591741
hex16a899a8

380148136 has 8 divisors (see below), whose sum is σ = 712777770. Its totient is φ = 190074064.

The previous prime is 380148127. The next prime is 380148137. The reversal of 380148136 is 631841083.

It can be written as a sum of positive squares in only one way, i.e., 261468900 + 118679236 = 16170^2 + 10894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (380148137) 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 as a sum of consecutive naturals, namely, 23759251 + ... + 23759266.

Almost surely, 2380148136 is an apocalyptic number.

It is an amenable number.

380148136 is a deficient number, since it is larger than the sum of its proper divisors (332629634).

380148136 is a wasteful number, since it uses less digits than its factorization.

380148136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47518523 (or 47518519 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 380148136 is about 19497.3879276174. The cubic root of 380148136 is about 724.4097524869.

The spelling of 380148136 in words is "three hundred eighty million, one hundred forty-eight thousand, one hundred thirty-six".

Divisors: 1 2 4 8 47518517 95037034 190074068 380148136