Search a number
-
+
12380518101 = 37797462639
BaseRepresentation
bin10111000011110111…
…11011011011010101
31011221211010111001110
423201323323123111
5200323403034401
65404301245233
7615541444650
oct134173733325
934854114043
1012380518101
115283530546
122496263819
131223c44773
14856390897
154c6d869d6
hex2e1efb6d5

12380518101 has 16 divisors (see below), whose sum is σ = 19104358400. Its totient is φ = 6985029168.

The previous prime is 12380518099. The next prime is 12380518159. The reversal of 12380518101 is 10181508321.

It is not a de Polignac number, because 12380518101 - 21 = 12380518099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12380518901) 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, 3729661 + ... + 3732978.

It is an arithmetic number, because the mean of its divisors is an integer number (1194022400).

Almost surely, 212380518101 is an apocalyptic number.

It is an amenable number.

12380518101 is a deficient number, since it is larger than the sum of its proper divisors (6723840299).

12380518101 is an equidigital number, since it uses as much as digits as its factorization.

12380518101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462728.

The product of its (nonzero) digits is 1920, while the sum is 30.

The spelling of 12380518101 in words is "twelve billion, three hundred eighty million, five hundred eighteen thousand, one hundred one".

Divisors: 1 3 7 21 79 237 553 1659 7462639 22387917 52238473 156715419 589548481 1768645443 4126839367 12380518101