Search a number
-
+
12088817 = 13792149
BaseRepresentation
bin101110000111…
…010111110001
3211202011201222
4232013113301
511043320232
61111034425
7204516236
oct56072761
924664658
1012088817
116907564
12406ba15
132673560
14186978d
1510dbd12
hexb875f1

12088817 has 12 divisors (see below), whose sum is σ = 13274100. Its totient is φ = 10943712.

The previous prime is 12088799. The next prime is 12088831. The reversal of 12088817 is 71888021.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 10491121 = 1264^2 + 3239^2 .

It is not a de Polignac number, because 12088817 - 210 = 12087793 is a prime.

It is a super-2 number, since 2×120888172 = 292278992918978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12088837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81059 + ... + 81207.

It is an arithmetic number, because the mean of its divisors is an integer number (1106175).

Almost surely, 212088817 is an apocalyptic number.

It is an amenable number.

12088817 is a deficient number, since it is larger than the sum of its proper divisors (1185283).

12088817 is an equidigital number, since it uses as much as digits as its factorization.

12088817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 12088817 is about 3476.8976113771. The cubic root of 12088817 is about 229.5062944940.

The spelling of 12088817 in words is "twelve million, eighty-eight thousand, eight hundred seventeen".

Divisors: 1 13 79 149 1027 1937 6241 11771 81133 153023 929909 12088817