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380681140 = 22572719151
BaseRepresentation
bin10110101100001…
…011101110110100
3222112022121100111
4112230023232310
51234423244030
6101435152404
712301510360
oct2654135664
9875277314
10380681140
11185980414
12a75a5704
1360b39218
14387b62a0
152364962a
hex16b0bbb4

380681140 has 24 divisors (see below), whose sum is σ = 913635072. Its totient is φ = 130519200.

The previous prime is 380681111. The next prime is 380681141. The reversal of 380681140 is 41186083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380681141) 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, 1359436 + ... + 1359715.

It is an arithmetic number, because the mean of its divisors is an integer number (38068128).

Almost surely, 2380681140 is an apocalyptic number.

It is an amenable number.

380681140 is an abundant number, since it is smaller than the sum of its proper divisors (532953932).

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

380681140 is a wasteful number, since it uses less digits than its factorization.

380681140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719167 (or 2719165 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 380681140 is about 19511.0517399755. The cubic root of 380681140 is about 724.7481582676.

The spelling of 380681140 in words is "three hundred eighty million, six hundred eighty-one thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2719151 5438302 10876604 13595755 19034057 27191510 38068114 54383020 76136228 95170285 190340570 380681140