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381320078 = 2953200063
BaseRepresentation
bin10110101110100…
…111101110001110
3222120112001210212
4112232213232032
51240104220303
6101501002422
712310111226
oct2656475616
9876461725
10381320078
11186277467
12a7853412
1361000ca9
1438901086
1523723ad8
hex16ba7b8e

381320078 has 8 divisors (see below), whose sum is σ = 572583168. Its totient is φ = 190459024.

The previous prime is 381320053. The next prime is 381320083. The reversal of 381320078 is 870023183.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98126 + ... + 101937.

It is an arithmetic number, because the mean of its divisors is an integer number (71572896).

Almost surely, 2381320078 is an apocalyptic number.

381320078 is a deficient number, since it is larger than the sum of its proper divisors (191263090).

381320078 is a wasteful number, since it uses less digits than its factorization.

381320078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201018.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 381320078 is about 19527.4186210057. The cubic root of 381320078 is about 725.1534058257.

The spelling of 381320078 in words is "three hundred eighty-one million, three hundred twenty thousand, seventy-eight".

Divisors: 1 2 953 1906 200063 400126 190660039 381320078