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31402014 = 2374671601
BaseRepresentation
bin111011111001…
…0100000011110
32012002101110120
41313302200132
531014331024
63041015410
7530625030
oct167624036
965071416
1031402014
11167a8886
12a624566
136676197
144255c50
152b54479
hex1df281e

31402014 has 32 divisors (see below), whose sum is σ = 71974656. Its totient is φ = 8947200.

The previous prime is 31402013. The next prime is 31402027. The reversal of 31402014 is 41020413.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31401984 and 31402002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18814 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (2249208).

Almost surely, 231402014 is an apocalyptic number.

31402014 is an abundant number, since it is smaller than the sum of its proper divisors (40572642).

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

31402014 is a wasteful number, since it uses less digits than its factorization.

31402014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 31402014 is about 5603.7499944234. The cubic root of 31402014 is about 315.4901715925.

Adding to 31402014 its reverse (41020413), we get a palindrome (72422427).

The spelling of 31402014 in words is "thirty-one million, four hundred two thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 42 467 934 1401 1601 2802 3202 3269 4803 6538 9606 9807 11207 19614 22414 33621 67242 747667 1495334 2243001 4486002 5233669 10467338 15701007 31402014