Search a number
-
+
31404141111 = 3722696191283
BaseRepresentation
bin11101001111110101…
…010010101000110111
310000001121102122212110
4131033311102220313
51003303430003421
622232111422103
72161136536500
oct351765225067
9100047378773
1031404141111
1112355901032
126105224933
132c66263725
14173cb17ba7
15c3c03aa76
hex74fd52a37

31404141111 has 48 divisors (see below), whose sum is σ = 49006684800. Its totient is φ = 17835717312.

The previous prime is 31404141107. The next prime is 31404141113. The reversal of 31404141111 is 11114140413.

It is not a de Polignac number, because 31404141111 - 22 = 31404141107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404141113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24476476 + ... + 24477758.

It is an arithmetic number, because the mean of its divisors is an integer number (1020972600).

Almost surely, 231404141111 is an apocalyptic number.

31404141111 is a deficient number, since it is larger than the sum of its proper divisors (17602543689).

31404141111 is a wasteful number, since it uses less digits than its factorization.

31404141111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 31404141111 its reverse (11114140413), we get a palindrome (42518281524).

The spelling of 31404141111 in words is "thirty-one billion, four hundred four million, one hundred forty-one thousand, one hundred eleven".

Divisors: 1 3 7 21 49 147 269 619 807 1283 1857 1883 3849 4333 5649 8981 12999 13181 26943 30331 39543 62867 90993 166511 188601 345127 499533 794177 1035381 1165577 2382531 2415889 3496731 5559239 7247667 8159039 16677717 16911223 24477117 38914673 50733669 116744019 213633613 640900839 1495435291 4486305873 10468047037 31404141111