Search a number
-
+
12087243364 = 227278532
BaseRepresentation
bin10110100000111010…
…01011001001100100
31011012101021120202011
423100131023021210
5144223313241424
65315223324004
7605350605400
oct132035131144
934171246664
1012087243364
115142a2a929
122413bb0604
1311a825cb11
1482944c100
154ab255694
hex2d074b264

12087243364 has 27 divisors (see below), whose sum is σ = 24609307737. Its totient is φ = 5179587504.

The previous prime is 12087243359. The next prime is 12087243379. The reversal of 12087243364 is 46334278021.

It is a happy number.

The square root of 12087243364 is 109942.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 248062500 + 11839180864 = 15750^2 + 108808^2 .

It is a super-2 number, since 2×120872433642 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1535262 + ... + 1543114.

Almost surely, 212087243364 is an apocalyptic number.

12087243364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12087243364 is the 109942-nd square number.

It is an amenable number.

12087243364 is an abundant number, since it is smaller than the sum of its proper divisors (12522064373).

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

12087243364 is an frugal number, since it uses more digits than its factorization.

12087243364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724 (or 7862 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 12087243364 in words is "twelve billion, eighty-seven million, two hundred forty-three thousand, three hundred sixty-four".

Divisors: 1 2 4 7 14 28 49 98 196 7853 15706 31412 54971 109942 219884 384797 769594 1539188 61669609 123339218 246678436 431687263 863374526 1726749052 3021810841 6043621682 12087243364