Search a number
-
+
12015614020 = 225797604819
BaseRepresentation
bin10110011000010111…
…11011100001000100
31011000101111102202111
423030023323201010
5144101444122040
65304144150404
7603521014444
oct131413734104
934011442674
1012015614020
115106556723
1223b4008404
1311964707a7
1481db24124
154a4d06dea
hex2cc2fb844

12015614020 has 24 divisors (see below), whose sum is σ = 25552195200. Its totient is φ = 4745406432.

The previous prime is 12015613979. The next prime is 12015614027. The reversal of 12015614020 is 2041651021.

It is a junction number, because it is equal to n+sod(n) for n = 12015613982 and 12015614000.

It is not an unprimeable number, because it can be changed into a prime (12015614027) 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, 3800830 + ... + 3803989.

It is an arithmetic number, because the mean of its divisors is an integer number (1064674800).

Almost surely, 212015614020 is an apocalyptic number.

12015614020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015614020 is an abundant number, since it is smaller than the sum of its proper divisors (13536581180).

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

12015614020 is a wasteful number, since it uses less digits than its factorization.

12015614020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7604907 (or 7604905 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The spelling of 12015614020 in words is "twelve billion, fifteen million, six hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 7604819 15209638 30419276 38024095 76048190 152096380 600780701 1201561402 2403122804 3003903505 6007807010 12015614020