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331214023 = 7195942209
BaseRepresentation
bin10011101111011…
…110110011000111
3212002020102020001
4103233132303013
51134242322043
652511022131
711131162360
oct2357366307
9762212201
10331214023
1115aa63aa8
1292b0a947
135380953a
1431dbab67
151e12774d
hex13bdecc7

331214023 has 16 divisors (see below), whose sum is σ = 405216000. Its totient is φ = 264390912.

The previous prime is 331214021. The next prime is 331214027. The reversal of 331214023 is 320412133.

It is a cyclic number.

It is not a de Polignac number, because 331214023 - 21 = 331214021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331214021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13258 + ... + 28951.

It is an arithmetic number, because the mean of its divisors is an integer number (25326000).

Almost surely, 2331214023 is an apocalyptic number.

331214023 is a deficient number, since it is larger than the sum of its proper divisors (74001977).

331214023 is a wasteful number, since it uses less digits than its factorization.

331214023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42294.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331214023 is about 18199.2863321615. The cubic root of 331214023 is about 691.8887013746. Note that the first 3 decimals are identical.

Adding to 331214023 its reverse (320412133), we get a palindrome (651626156).

The spelling of 331214023 in words is "three hundred thirty-one million, two hundred fourteen thousand, twenty-three".

Divisors: 1 7 19 59 133 413 1121 7847 42209 295463 801971 2490331 5613797 17432317 47316289 331214023