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31320114 = 2372106531
BaseRepresentation
bin111011101111…
…0100000110010
32011221020010020
41313132200302
531004220424
63035144310
7530134200
oct167364062
964836106
1031320114
11167522a1
12a5a5096
136647b17
144234070
152b3a079
hex1dde832

31320114 has 24 divisors (see below), whose sum is σ = 72867888. Its totient is φ = 8948520.

The previous prime is 31320109. The next prime is 31320173. The reversal of 31320114 is 41102313.

It is a junction number, because it is equal to n+sod(n) for n = 31320093 and 31320102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52972 + ... + 53559.

It is an arithmetic number, because the mean of its divisors is an integer number (3036162).

Almost surely, 231320114 is an apocalyptic number.

31320114 is an abundant number, since it is smaller than the sum of its proper divisors (41547774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31320114 is a wasteful number, since it uses less digits than its factorization.

31320114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106550 (or 106543 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31320114 is about 5596.4376169131. The cubic root of 31320114 is about 315.2156547942.

Adding to 31320114 its reverse (41102313), we get a palindrome (72422427).

The spelling of 31320114 in words is "thirty-one million, three hundred twenty thousand, one hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 106531 213062 319593 639186 745717 1491434 2237151 4474302 5220019 10440038 15660057 31320114