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331057404 = 223210918429
BaseRepresentation
bin10011101110111…
…000100011111100
3212001221110101100
4103232320203330
51134222314104
652503413100
711126640636
oct2356704374
9761843340
10331057404
1115a967367
1292a54190
1353783172
1431d79a56
151e0e6139
hex13bb88fc

331057404 has 36 divisors (see below), whose sum is σ = 837705960. Its totient is φ = 110238240.

The previous prime is 331057403. The next prime is 331057453. The reversal of 331057404 is 404750133.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331057403) 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 11 ways as a sum of consecutive naturals, for example, 35062 + ... + 43490.

It is an arithmetic number, because the mean of its divisors is an integer number (23269610).

Almost surely, 2331057404 is an apocalyptic number.

It is an amenable number.

331057404 is an abundant number, since it is smaller than the sum of its proper divisors (506648556).

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

331057404 is a wasteful number, since it uses less digits than its factorization.

331057404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530 (or 9525 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 331057404 is about 18194.9829348642. The cubic root of 331057404 is about 691.7796278916.

The spelling of 331057404 in words is "three hundred thirty-one million, fifty-seven thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 1091 2182 3273 4364 6546 8429 9819 13092 16858 19638 25287 33716 39276 50574 75861 101148 151722 303444 9196039 18392078 27588117 36784156 55176234 82764351 110352468 165528702 331057404