Search a number
-
+
12013001009 = 195209121379
BaseRepresentation
bin10110011000000011…
…11101100100110001
31011000012120200101022
423030001331210301
5144100312013014
65304012145225
7603456552362
oct131401754461
934005520338
1012013001009
115105031509
1223b3168215
131195a67329
1481d643b69
154a498ca8e
hex2cc07d931

12013001009 has 8 divisors (see below), whose sum is σ = 12647796000. Its totient is φ = 11378459232.

The previous prime is 12013001003. The next prime is 12013001029. The reversal of 12013001009 is 90010031021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12013001009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013001003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38282 + ... + 159660.

It is an arithmetic number, because the mean of its divisors is an integer number (1580974500).

Almost surely, 212013001009 is an apocalyptic number.

12013001009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12013001009 is a deficient number, since it is larger than the sum of its proper divisors (634794991).

12013001009 is a wasteful number, since it uses less digits than its factorization.

12013001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126607.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 12013001009 in words is "twelve billion, thirteen million, one thousand, nine".

Divisors: 1 19 5209 98971 121379 2306201 632263211 12013001009