Search a number
-
+
868580151 = 31033537963
BaseRepresentation
bin110011110001010…
…111101100110111
32020112101102222020
4303301113230313
53234324031101
6222104404223
730344544435
oct6361275467
92215342866
10868580151
1140632213a
12202a76673
1310ac4536a
14834dbd55
15513c2136
hex33c57b37

868580151 has 16 divisors (see below), whose sum is σ = 1172810496. Its totient is φ = 571735296.

The previous prime is 868580113. The next prime is 868580179. The reversal of 868580151 is 151085868.

It is a happy number.

It is not a de Polignac number, because 868580151 - 26 = 868580087 is a prime.

It is a super-2 number, since 2×8685801512 = 1508862957422365602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868580191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105096 + ... + 113058.

It is an arithmetic number, because the mean of its divisors is an integer number (73300656).

Almost surely, 2868580151 is an apocalyptic number.

868580151 is a deficient number, since it is larger than the sum of its proper divisors (304230345).

868580151 is a wasteful number, since it uses less digits than its factorization.

868580151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422.

The product of its (nonzero) digits is 76800, while the sum is 42.

The square root of 868580151 is about 29471.6838847053. The cubic root of 868580151 is about 954.1206605643.

The spelling of 868580151 in words is "eight hundred sixty-eight million, five hundred eighty thousand, one hundred fifty-one".

Divisors: 1 3 103 309 353 1059 7963 23889 36359 109077 820189 2460567 2810939 8432817 289526717 868580151