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331130001 = 3791499377
BaseRepresentation
bin10011101111001…
…010010010010001
3212002002010222010
4103233022102101
51134232130001
652505133133
711130362406
oct2357122221
9762063863
10331130001
1115aa06964
1292a8a1a9
13537aa217
1431d982ad
151e10c8d6
hex13bca491

331130001 has 16 divisors (see below), whose sum is σ = 450144000. Its totient is φ = 216473088.

The previous prime is 331129999. The next prime is 331130053. The reversal of 331130001 is 100031133.

It is not a de Polignac number, because 331130001 - 21 = 331129999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331130101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30625 + ... + 40001.

It is an arithmetic number, because the mean of its divisors is an integer number (28134000).

Almost surely, 2331130001 is an apocalyptic number.

It is an amenable number.

331130001 is a deficient number, since it is larger than the sum of its proper divisors (119013999).

331130001 is a wasteful number, since it uses less digits than its factorization.

331130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9608.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 331130001 is about 18196.9777985247. The cubic root of 331130001 is about 691.8301905781.

Adding to 331130001 its reverse (100031133), we get a palindrome (431161134).

The spelling of 331130001 in words is "three hundred thirty-one million, one hundred thirty thousand, one".

Divisors: 1 3 79 149 237 447 9377 11771 28131 35313 740783 1397173 2222349 4191519 110376667 331130001