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31041055 = 543353409
BaseRepresentation
bin111011001101…
…0011000011111
32011102001022201
41312122120133
530421303210
63025152331
7524562463
oct166323037
964361281
1031041055
1116581671
12a48b6a7
13657aab6
1441a04a3
152ad253a
hex1d9a61f

31041055 has 16 divisors (see below), whose sum is σ = 38316960. Its totient is φ = 24127488.

The previous prime is 31041029. The next prime is 31041061. The reversal of 31041055 is 55014013.

It is a cyclic number.

It is not a de Polignac number, because 31041055 - 29 = 31040543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75691 + ... + 76099.

It is an arithmetic number, because the mean of its divisors is an integer number (2394810).

Almost surely, 231041055 is an apocalyptic number.

31041055 is a deficient number, since it is larger than the sum of its proper divisors (7275905).

31041055 is a wasteful number, since it uses less digits than its factorization.

31041055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 31041055 is about 5571.4499908013. The cubic root of 31041055 is about 314.2766808206.

Adding to 31041055 its reverse (55014013), we get a palindrome (86055068).

The spelling of 31041055 in words is "thirty-one million, forty-one thousand, fifty-five".

Divisors: 1 5 43 215 353 409 1765 2045 15179 17587 75895 87935 144377 721885 6208211 31041055