Search a number
-
+
1405500108 = 223117125009
BaseRepresentation
bin101001111000110…
…0011101011001100
310121221200210200120
41103301203223030
510334302000413
6351244424540
746554360645
oct12361435314
93557623616
101405500108
11661406041
12332848150
1319525608c
14d49446cc
15835ce723
hex53c63acc

1405500108 has 12 divisors (see below), whose sum is σ = 3279500280. Its totient is φ = 468500032.

The previous prime is 1405500073. The next prime is 1405500113. The reversal of 1405500108 is 8010055041.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58562493 + ... + 58562516.

It is an arithmetic number, because the mean of its divisors is an integer number (273291690).

Almost surely, 21405500108 is an apocalyptic number.

It is an amenable number.

1405500108 is an abundant number, since it is smaller than the sum of its proper divisors (1874000172).

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

1405500108 is a wasteful number, since it uses less digits than its factorization.

1405500108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117125016 (or 117125014 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1405500108 is about 37490.0001066951. Note that the first 3 decimals coincide. The cubic root of 1405500108 is about 1120.1520063671.

Adding to 1405500108 its reverse (8010055041), we get a palindrome (9415555149).

The spelling of 1405500108 in words is "one billion, four hundred five million, five hundred thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 117125009 234250018 351375027 468500036 702750054 1405500108