Search a number
-
+
31241244404 = 2234123228887
BaseRepresentation
bin11101000110000111…
…111000111011110100
32222122020220122121002
4131012013320323310
51002440224310104
622204012142432
72154121124126
oct350607707364
988566818532
1031241244404
1112281960357
12607a767a18
132c3b59a646
141725233216
15c2cab001e
hex7461f8ef4

31241244404 has 12 divisors (see below), whose sum is σ = 54674018784. Its totient is φ = 15620096184.

The previous prime is 31241244401. The next prime is 31241244421. The reversal of 31241244404 is 40444214213.

It is a super-2 number, since 2×312412444042 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241244401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22049 + ... + 250935.

It is an arithmetic number, because the mean of its divisors is an integer number (4556168232).

Almost surely, 231241244404 is an apocalyptic number.

It is an amenable number.

31241244404 is a deficient number, since it is larger than the sum of its proper divisors (23432774380).

31241244404 is a wasteful number, since it uses less digits than its factorization.

31241244404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263014 (or 263012 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 31241244404 its reverse (40444214213), we get a palindrome (71685458617).

The spelling of 31241244404 in words is "thirty-one billion, two hundred forty-one million, two hundred forty-four thousand, four hundred four".

Divisors: 1 2 4 34123 68246 136492 228887 457774 915548 7810311101 15620622202 31241244404