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380641583 = 754377369
BaseRepresentation
bin10110101100000…
…010000100101111
3222112020121002102
4112230002010233
51234421012313
6101434245315
712301254140
oct2654020457
9875217072
10380641583
11185953723
12a758683b
1360b2420a
14387a5ac7
152363ca58
hex16b0212f

380641583 has 4 divisors (see below), whose sum is σ = 435018960. Its totient is φ = 326264208.

The previous prime is 380641571. The next prime is 380641589. The reversal of 380641583 is 385146083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380641583 - 24 = 380641567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380641589) 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, 27188678 + ... + 27188691.

It is an arithmetic number, because the mean of its divisors is an integer number (108754740).

Almost surely, 2380641583 is an apocalyptic number.

380641583 is a deficient number, since it is larger than the sum of its proper divisors (54377377).

380641583 is an equidigital number, since it uses as much as digits as its factorization.

380641583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54377376.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 380641583 is about 19510.0380061137. The cubic root of 380641583 is about 724.7230542694.

The spelling of 380641583 in words is "three hundred eighty million, six hundred forty-one thousand, five hundred eighty-three".

Divisors: 1 7 54377369 380641583