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331063161 = 311133720857
BaseRepresentation
bin10011101110111…
…001111101111001
3212001221202021120
4103232321331321
51134223010121
652503455453
711126663502
oct2356717571
9761852246
10331063161
1115a970720
1292a57589
1353785980
1431d7bba9
151e0e7bc6
hex13bb9f79

331063161 has 32 divisors (see below), whose sum is σ = 532629888. Its totient is φ = 180195840.

The previous prime is 331063093. The next prime is 331063181. The reversal of 331063161 is 161360133.

It is not a de Polignac number, because 331063161 - 214 = 331046777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331063181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5445 + ... + 26301.

It is an arithmetic number, because the mean of its divisors is an integer number (16644684).

Almost surely, 2331063161 is an apocalyptic number.

It is an amenable number.

331063161 is a deficient number, since it is larger than the sum of its proper divisors (201566727).

331063161 is a wasteful number, since it uses less digits than its factorization.

331063161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 331063161 is about 18195.1411371278. The cubic root of 331063161 is about 691.7836378228.

The spelling of 331063161 in words is "three hundred thirty-one million, sixty-three thousand, one hundred sixty-one".

Divisors: 1 3 11 13 33 37 39 111 143 407 429 481 1221 1443 5291 15873 20857 62571 229427 271141 688281 771709 813423 2315127 2982551 8488799 8947653 10032217 25466397 30096651 110354387 331063161