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31044001 = 891492341
BaseRepresentation
bin111011001101…
…1000110100001
32011102012100211
41312123012201
530421402001
63025214121
7524604202
oct166330641
964365324
1031044001
11165838aa
12a491341
13657c241
1441a15a9
152ad3351
hex1d9b1a1

31044001 has 8 divisors (see below), whose sum is σ = 31617000. Its totient is φ = 30476160.

The previous prime is 31043993. The next prime is 31044019. The reversal of 31044001 is 10044013.

It can be written as a sum of positive squares in 4 ways, for example, as 230400 + 30813601 = 480^2 + 5551^2 .

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 31044001 - 23 = 31043993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31044031) 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, 12091 + ... + 14431.

It is an arithmetic number, because the mean of its divisors is an integer number (3952125).

Almost surely, 231044001 is an apocalyptic number.

It is an amenable number.

31044001 is a deficient number, since it is larger than the sum of its proper divisors (572999).

31044001 is a wasteful number, since it uses less digits than its factorization.

31044001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 31044001 is about 5571.7143681276. The cubic root of 31044001 is about 314.2866228132.

Adding to 31044001 its reverse (10044013), we get a palindrome (41088014).

The spelling of 31044001 in words is "thirty-one million, forty-four thousand, one".

Divisors: 1 89 149 2341 13261 208349 348809 31044001