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31330054 = 272237861
BaseRepresentation
bin111011110000…
…0111100000110
32011221201202101
41313200330012
531010030204
63035302314
7530205160
oct167407406
964851671
1031330054
1116759808
12a5aa99a
13664c4c2
144237930
152b3cea4
hex1de0f06

31330054 has 8 divisors (see below), whose sum is σ = 53708688. Its totient is φ = 13427160.

The previous prime is 31330043. The next prime is 31330073. The reversal of 31330054 is 45003313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1118917 + ... + 1118944.

It is an arithmetic number, because the mean of its divisors is an integer number (6713586).

Almost surely, 231330054 is an apocalyptic number.

31330054 is a deficient number, since it is larger than the sum of its proper divisors (22378634).

31330054 is a wasteful number, since it uses less digits than its factorization.

31330054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237870.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 31330054 is about 5597.3256113969. The cubic root of 31330054 is about 315.2489977146.

Adding to 31330054 its reverse (45003313), we get a palindrome (76333367).

The spelling of 31330054 in words is "thirty-one million, three hundred thirty thousand, fifty-four".

Divisors: 1 2 7 14 2237861 4475722 15665027 31330054