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356149 = 2912281
BaseRepresentation
bin1010110111100110101
3200002112201
41112330311
542344044
611344501
73012223
oct1267465
9602481
10356149
11223642
12152131
13c6151
1493b13
15707d4
hex56f35

356149 has 4 divisors (see below), whose sum is σ = 368460. Its totient is φ = 343840.

The previous prime is 356143. The next prime is 356171. The reversal of 356149 is 941653.

356149 = T142 + T143 + ... + T170.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255025 + 101124 = 505^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 356149 - 23 = 356141 is a prime.

It is a super-2 number, since 2×3561492 = 253684220402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6112 + ... + 6169.

It is an arithmetic number, because the mean of its divisors is an integer number (92115).

2356149 is an apocalyptic number.

It is an amenable number.

356149 is a deficient number, since it is larger than the sum of its proper divisors (12311).

356149 is a wasteful number, since it uses less digits than its factorization.

356149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12310.

The product of its digits is 3240, while the sum is 28.

The square root of 356149 is about 596.7822048285. The cubic root of 356149 is about 70.8832970057.

It can be divided in two parts, 356 and 149, that added together give a palindrome (505).

The spelling of 356149 in words is "three hundred fifty-six thousand, one hundred forty-nine".

Divisors: 1 29 12281 356149