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381283153 = 2391595327
BaseRepresentation
bin10110101110011…
…110101101010001
3222120110012011021
4112232132231101
51240102030103
6101500115441
712306565456
oct2656365521
9876405137
10381283153
11186251749
12a7835b81
1360cba244
14388d182d
1523717bbd
hex16b9eb51

381283153 has 4 divisors (see below), whose sum is σ = 382878720. Its totient is φ = 379687588.

The previous prime is 381283109. The next prime is 381283163. The reversal of 381283153 is 351382183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381283153 - 213 = 381274961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381283163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797425 + ... + 797902.

It is an arithmetic number, because the mean of its divisors is an integer number (95719680).

Almost surely, 2381283153 is an apocalyptic number.

It is an amenable number.

381283153 is a deficient number, since it is larger than the sum of its proper divisors (1595567).

381283153 is a wasteful number, since it uses less digits than its factorization.

381283153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595566.

The product of its digits is 17280, while the sum is 34.

The square root of 381283153 is about 19526.4731326474. The cubic root of 381283153 is about 725.1299984090.

The spelling of 381283153 in words is "three hundred eighty-one million, two hundred eighty-three thousand, one hundred fifty-three".

Divisors: 1 239 1595327 381283153