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31052001 = 323450029
BaseRepresentation
bin111011001110…
…1000011100001
32011102121100010
41312131003201
530422131001
63025315133
7524636421
oct166350341
964377303
1031052001
1116589912
12a495aa9
136582a86
1441a4481
152ad58d6
hex1d9d0e1

31052001 has 8 divisors (see below), whose sum is σ = 43202880. Its totient is φ = 19801232.

The previous prime is 31051973. The next prime is 31052017. The reversal of 31052001 is 10025013.

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 31052001 - 27 = 31051873 is a prime.

It is a super-2 number, since 2×310520012 = 1928453532208002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31052051) 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, 224946 + ... + 225083.

It is an arithmetic number, because the mean of its divisors is an integer number (5400360).

Almost surely, 231052001 is an apocalyptic number.

It is an amenable number.

31052001 is a deficient number, since it is larger than the sum of its proper divisors (12150879).

31052001 is a wasteful number, since it uses less digits than its factorization.

31052001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450055.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 31052001 is about 5572.4322337737. The cubic root of 31052001 is about 314.3136175836.

Adding to 31052001 its reverse (10025013), we get a palindrome (41077014).

The spelling of 31052001 in words is "thirty-one million, fifty-two thousand, one".

Divisors: 1 3 23 69 450029 1350087 10350667 31052001