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381353 = 7157347
BaseRepresentation
bin1011101000110101001
3201101010012
41131012221
544200403
612101305
73145550
oct1350651
9641105
10381353
11240575
12164835
1310476b
149cd97
1577ed8
hex5d1a9

381353 has 8 divisors (see below), whose sum is σ = 439872. Its totient is φ = 323856.

The previous prime is 381347. The next prime is 381371. The reversal of 381353 is 353183.

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 381353 - 26 = 381289 is a prime.

It is a super-2 number, since 2×3813532 = 290860221218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (54984).

2381353 is an apocalyptic number.

It is an amenable number.

381353 is a deficient number, since it is larger than the sum of its proper divisors (58519).

381353 is a wasteful number, since it uses less digits than its factorization.

381353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its digits is 1080, while the sum is 23.

The square root of 381353 is about 617.5378530908. The cubic root of 381353 is about 72.5174274395.

The spelling of 381353 in words is "three hundred eighty-one thousand, three hundred fifty-three".

Divisors: 1 7 157 347 1099 2429 54479 381353