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331120134 = 23218395563
BaseRepresentation
bin10011101111000…
…111111000000110
3212002001122102200
4103233013320012
51134231321014
652505015330
711130321552
oct2357077006
9762048380
10331120134
1115a9aa504
1292a84546
13537a5897
1431d94862
151e109a09
hex13bc7e06

331120134 has 12 divisors (see below), whose sum is σ = 717426996. Its totient is φ = 110373372.

The previous prime is 331120103. The next prime is 331120151. The reversal of 331120134 is 431021133.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 18395563 = 331120134 / (3 + 3 + 1 + 1 + 2 + 0 + 1 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9197764 + ... + 9197799.

It is an arithmetic number, because the mean of its divisors is an integer number (59785583).

Almost surely, 2331120134 is an apocalyptic number.

331120134 is an abundant number, since it is smaller than the sum of its proper divisors (386306862).

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

331120134 is a wasteful number, since it uses less digits than its factorization.

331120134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395571 (or 18395568 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 331120134 is about 18196.7066800561. The cubic root of 331120134 is about 691.8233187993.

Adding to 331120134 its reverse (431021133), we get a palindrome (762141267).

Subtracting 331120134 from its reverse (431021133), we obtain a palindrome (99900999).

The spelling of 331120134 in words is "three hundred thirty-one million, one hundred twenty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 18395563 36791126 55186689 110373378 165560067 331120134