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31034642 = 2109314197
BaseRepresentation
bin111011001100…
…0110100010010
32011101201112012
41312120310102
530421102032
63025102522
7524535002
oct166306422
964351465
1031034642
1116577871
12a487a42
136577bc2
14419c002
152ad06b2
hex1d98d12

31034642 has 8 divisors (see below), whose sum is σ = 46597836. Its totient is φ = 15502032.

The previous prime is 31034623. The next prime is 31034651. The reversal of 31034642 is 24643013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 12103441 = 4351^2 + 3479^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913 + ... + 9284.

Almost surely, 231034642 is an apocalyptic number.

31034642 is a deficient number, since it is larger than the sum of its proper divisors (15563194).

31034642 is a wasteful number, since it uses less digits than its factorization.

31034642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 31034642 is about 5570.8744376444. The cubic root of 31034642 is about 314.2550364192.

Adding to 31034642 its reverse (24643013), we get a palindrome (55677655).

It can be divided in two parts, 31034 and 642, that multiplied together give a triangular number (19923828 = T6312).

The spelling of 31034642 in words is "thirty-one million, thirty-four thousand, six hundred forty-two".

Divisors: 1 2 1093 2186 14197 28394 15517321 31034642