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381349199 = 7114952587
BaseRepresentation
bin10110101110101…
…110110101001111
3222120120112202102
4112232232311033
51240111133244
6101501345315
712310262150
oct2656566517
9876515672
10381349199
11186297330
12a786823b
136101131a
143890b927
152372c54e
hex16baed4f

381349199 has 8 divisors (see below), whose sum is σ = 475448448. Its totient is φ = 297155160.

The previous prime is 381349181. The next prime is 381349229. The reversal of 381349199 is 991943183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381349199 - 212 = 381345103 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 (381349099) 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 7 ways as a sum of consecutive naturals, for example, 2476217 + ... + 2476370.

It is an arithmetic number, because the mean of its divisors is an integer number (59431056).

Almost surely, 2381349199 is an apocalyptic number.

381349199 is a deficient number, since it is larger than the sum of its proper divisors (94099249).

381349199 is a wasteful number, since it uses less digits than its factorization.

381349199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952605.

The product of its digits is 209952, while the sum is 47.

The square root of 381349199 is about 19528.1642506407. The cubic root of 381349199 is about 725.1718650817.

The spelling of 381349199 in words is "three hundred eighty-one million, three hundred forty-nine thousand, one hundred ninety-nine".

Divisors: 1 7 11 77 4952587 34668109 54478457 381349199