Search a number
-
+
31454557458 = 2310694904047
BaseRepresentation
bin11101010010110101…
…100111010100010010
310000012010022002002120
4131102311213110102
51003404331314313
622241112155110
72162321220102
oct352265472422
9100163262076
1031454557458
1112381306635
12611a098a96
132c7383649c
1417456bd202
15c41698d23
hex752d67512

31454557458 has 16 divisors (see below), whose sum is σ = 62967976320. Its totient is φ = 10475042256.

The previous prime is 31454557429. The next prime is 31454557481. The reversal of 31454557458 is 85475545413.

It is a self number, because there is not a number n which added to its sum of digits gives 31454557458.

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, 2445610 + ... + 2458437.

It is an arithmetic number, because the mean of its divisors is an integer number (3935498520).

Almost surely, 231454557458 is an apocalyptic number.

31454557458 is an abundant number, since it is smaller than the sum of its proper divisors (31513418862).

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

31454557458 is a wasteful number, since it uses less digits than its factorization.

31454557458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905121.

The product of its digits is 6720000, while the sum is 51.

The spelling of 31454557458 in words is "thirty-one billion, four hundred fifty-four million, five hundred fifty-seven thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 1069 2138 3207 6414 4904047 9808094 14712141 29424282 5242426243 10484852486 15727278729 31454557458