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331242354 = 23218402353
BaseRepresentation
bin10011101111100…
…101101101110010
3212002021212002100
4103233211231302
51134244223404
652511401230
711131341102
oct2357455562
9762255070
10331242354
1115aa83313
1292b23216
13538193c1
1431dc7202
151e130d39
hex13be5b72

331242354 has 12 divisors (see below), whose sum is σ = 717691806. Its totient is φ = 110414112.

The previous prime is 331242349. The next prime is 331242367. The reversal of 331242354 is 453242133.

It can be written as a sum of positive squares in only one way, i.e., 318087225 + 13155129 = 17835^2 + 3627^2 .

It is a super-3 number, since 3×3312423543 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9201159 + ... + 9201194.

Almost surely, 2331242354 is an apocalyptic number.

331242354 is an abundant number, since it is smaller than the sum of its proper divisors (386449452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331242354 is a wasteful number, since it uses less digits than its factorization.

331242354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18402361 (or 18402358 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 331242354 is about 18200.0646702148. The cubic root of 331242354 is about 691.9084281359.

Adding to 331242354 its reverse (453242133), we get a palindrome (784484487).

The spelling of 331242354 in words is "three hundred thirty-one million, two hundred forty-two thousand, three hundred fifty-four".

Divisors: 1 2 3 6 9 18 18402353 36804706 55207059 110414118 165621177 331242354