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380935919 = 7135970951
BaseRepresentation
bin10110101101001…
…001111011101111
3222112210112211202
4112231021323233
51240004422134
6101444440115
712303621230
oct2655117357
9875715752
10380935919
11186034881
12a76a903b
1360bc8190
1438841087
1523699d7e
hex16b49eef

380935919 has 16 divisors (see below), whose sum is σ = 476797440. Its totient is φ = 296287200.

The previous prime is 380935901. The next prime is 380935969. The reversal of 380935919 is 919539083.

It is a cyclic number.

It is not a de Polignac number, because 380935919 - 216 = 380870383 is a prime.

It is a super-2 number, since 2×3809359192 = 290224348768749122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380935969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30107 + ... + 40844.

It is an arithmetic number, because the mean of its divisors is an integer number (29799840).

Almost surely, 2380935919 is an apocalyptic number.

380935919 is a deficient number, since it is larger than the sum of its proper divisors (95861521).

380935919 is a wasteful number, since it uses less digits than its factorization.

380935919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71030.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 380935919 is about 19517.5797423758. The cubic root of 380935919 is about 724.9098066159.

The spelling of 380935919 in words is "three hundred eighty million, nine hundred thirty-five thousand, nine hundred nineteen".

Divisors: 1 7 13 59 91 413 767 5369 70951 496657 922363 4186109 6456541 29302763 54419417 380935919