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331678011 = 3722256313
BaseRepresentation
bin10011110001010…
…000000100111011
3212010002222200210
4103301100010323
51134402144021
652525002203
711135134200
oct2361200473
9763088623
10331678011
11160250665
12930b3363
135393c7a2
143209bca7
151e1b9e76
hex13c5013b

331678011 has 12 divisors (see below), whose sum is σ = 514439592. Its totient is φ = 189530208.

The previous prime is 331677977. The next prime is 331678019. The reversal of 331678011 is 110876133.

It is not a de Polignac number, because 331678011 - 26 = 331677947 is a prime.

It is a super-2 number, since 2×3316780112 = 220020605961832242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331678011.

It is not an unprimeable number, because it can be changed into a prime (331678019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1128010 + ... + 1128303.

It is an arithmetic number, because the mean of its divisors is an integer number (42869966).

Almost surely, 2331678011 is an apocalyptic number.

331678011 is a deficient number, since it is larger than the sum of its proper divisors (182761581).

331678011 is a wasteful number, since it uses less digits than its factorization.

331678011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256330 (or 2256323 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 331678011 is about 18212.0292938486. The cubic root of 331678011 is about 692.2116328155.

The spelling of 331678011 in words is "three hundred thirty-one million, six hundred seventy-eight thousand, eleven".

Divisors: 1 3 7 21 49 147 2256313 6768939 15794191 47382573 110559337 331678011