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31233004034 = 215616502017
BaseRepresentation
bin11101000101101000…
…011101001000000010
32222121200101222221012
4131011220131020002
51002431122112114
622203115400522
72153661103541
oct350550351002
988550358835
1031233004034
1112278242231
126077a53142
132c3997399b
1417240ca158
15c2bed363e
hex745a1d202

31233004034 has 4 divisors (see below), whose sum is σ = 46849506054. Its totient is φ = 15616502016.

The previous prime is 31233003961. The next prime is 31233004037. The reversal of 31233004034 is 43040033213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43040033213 = 79544810547.

It can be written as a sum of positive squares in only one way, i.e., 18633615025 + 12599389009 = 136505^2 + 112247^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31233004037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7808251007 + ... + 7808251010.

Almost surely, 231233004034 is an apocalyptic number.

31233004034 is a deficient number, since it is larger than the sum of its proper divisors (15616502020).

31233004034 is a wasteful number, since it uses less digits than its factorization.

31233004034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15616502019.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31233004034 its reverse (43040033213), we get a palindrome (74273037247).

The spelling of 31233004034 in words is "thirty-one billion, two hundred thirty-three million, four thousand, thirty-four".

Divisors: 1 2 15616502017 31233004034