Search a number
-
+
31234041244 = 2274127207353
BaseRepresentation
bin11101000101101100…
…011010010110011100
32222121202100200201101
4131011230122112130
51002431403304434
622203153522444
72154002653510
oct350554322634
988552320641
1031234041244
111227889052a
126078273424
132c39c47b13
1417242ba140
15c2c13ab14
hex745b1a59c

31234041244 has 24 divisors (see below), whose sum is σ = 63991696608. Its totient is φ = 13059528960.

The previous prime is 31234041221. The next prime is 31234041253. The reversal of 31234041244 is 44214043213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13602529 + ... + 13604824.

It is an arithmetic number, because the mean of its divisors is an integer number (2666320692).

Almost surely, 231234041244 is an apocalyptic number.

It is an amenable number.

31234041244 is an abundant number, since it is smaller than the sum of its proper divisors (32757655364).

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

31234041244 is a wasteful number, since it uses less digits than its factorization.

31234041244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27207405 (or 27207403 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31234041244 its reverse (44214043213), we get a palindrome (75448084457).

The spelling of 31234041244 in words is "thirty-one billion, two hundred thirty-four million, forty-one thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 27207353 54414706 108829412 190451471 380902942 761805884 1115501473 2231002946 4462005892 7808510311 15617020622 31234041244