Search a number
-
+
31423111244 = 22723205323767
BaseRepresentation
bin11101010000111101…
…101010000001001100
310000002221010102222222
4131100331222001030
51003323304024434
622234030154512
72161460016140
oct352075520114
9100087112888
1031423111244
1112365588628
12610b652a38
132c6a176165
141741455220
15c3da3672e
hex750f6a04c

31423111244 has 48 divisors (see below), whose sum is σ = 65613370368. Its totient is φ = 12874707648.

The previous prime is 31423111241. The next prime is 31423111277. The reversal of 31423111244 is 44211132413.

It is not an unprimeable number, because it can be changed into a prime (31423111241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310249 + ... + 1334015.

It is an arithmetic number, because the mean of its divisors is an integer number (1366945216).

Almost surely, 231423111244 is an apocalyptic number.

It is an amenable number.

31423111244 is an abundant number, since it is smaller than the sum of its proper divisors (34190259124).

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

31423111244 is a wasteful number, since it uses less digits than its factorization.

31423111244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25854 (or 25852 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

Adding to 31423111244 its reverse (44211132413), we get a palindrome (75634243657).

The spelling of 31423111244 in words is "thirty-one billion, four hundred twenty-three million, one hundred eleven thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 2053 4106 8212 14371 23767 28742 47219 47534 57484 94438 95068 166369 188876 330533 332738 546641 661066 665476 1093282 1322132 2186564 3826487 7652974 15305948 48793651 97587302 195174604 341555557 683111114 1122253973 1366222228 2244507946 4489015892 7855777811 15711555622 31423111244