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31054401 = 337164309
BaseRepresentation
bin111011001110…
…1101001000001
32011102201122000
41312131221001
530422220101
63025334213
7524646420
oct166355101
964381560
1031054401
11165906a4
12a497369
136583bb1
1441a52b7
152ad6486
hex1d9da41

31054401 has 16 divisors (see below), whose sum is σ = 52579200. Its totient is φ = 17745264.

The previous prime is 31054391. The next prime is 31054403. The reversal of 31054401 is 10445013.

It is a happy number.

It is not a de Polignac number, because 31054401 - 26 = 31054337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31054403) 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 15 ways as a sum of consecutive naturals, for example, 81966 + ... + 82343.

It is an arithmetic number, because the mean of its divisors is an integer number (3286200).

Almost surely, 231054401 is an apocalyptic number.

It is an amenable number.

31054401 is a deficient number, since it is larger than the sum of its proper divisors (21524799).

31054401 is a wasteful number, since it uses less digits than its factorization.

31054401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164325 (or 164319 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 31054401 is about 5572.6475754349. The cubic root of 31054401 is about 314.3217151106.

Adding to 31054401 its reverse (10445013), we get a palindrome (41499414).

The spelling of 31054401 in words is "thirty-one million, fifty-four thousand, four hundred one".

Divisors: 1 3 7 9 21 27 63 189 164309 492927 1150163 1478781 3450489 4436343 10351467 31054401