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331897107 = 3234810103
BaseRepresentation
bin10011110010000…
…101100100010011
3212010112010020110
4103302011210103
51134431201412
652533412403
711140036023
oct2362054423
9763463213
10331897107
11160390233
129319a103
13539b8429
1432117a83
151e20ed3c
hex13c85913

331897107 has 8 divisors (see below), whose sum is σ = 461769984. Its totient is φ = 211644488.

The previous prime is 331897099. The next prime is 331897117. The reversal of 331897107 is 701798133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331897107 - 23 = 331897099 is a prime.

It is a super-2 number, since 2×3318971072 = 220311379269938898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331897117) 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 7 ways as a sum of consecutive naturals, for example, 2404983 + ... + 2405120.

It is an arithmetic number, because the mean of its divisors is an integer number (57721248).

Almost surely, 2331897107 is an apocalyptic number.

331897107 is a deficient number, since it is larger than the sum of its proper divisors (129872877).

331897107 is a wasteful number, since it uses less digits than its factorization.

331897107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810129.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 331897107 is about 18218.0434459906. The cubic root of 331897107 is about 692.3640169682.

The spelling of 331897107 in words is "three hundred thirty-one million, eight hundred ninety-seven thousand, one hundred seven".

Divisors: 1 3 23 69 4810103 14430309 110632369 331897107