Search a number
-
+
68271015 = 3523197887
BaseRepresentation
bin1000001000110…
…11101110100111
311202110112020010
410010123232213
5114434133030
610435141303
71456202601
oct404335647
9152415203
1068271015
11355a002a
121aa44833
13111b4867
1490d2171
155ed86b0
hex411bba7

68271015 has 16 divisors (see below), whose sum is σ = 113983488. Its totient is φ = 34827936.

The previous prime is 68271011. The next prime is 68271023. The reversal of 68271015 is 51017286.

It is not a de Polignac number, because 68271015 - 22 = 68271011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68271011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98599 + ... + 99288.

It is an arithmetic number, because the mean of its divisors is an integer number (7123968).

Almost surely, 268271015 is an apocalyptic number.

68271015 is a deficient number, since it is larger than the sum of its proper divisors (45712473).

68271015 is a wasteful number, since it uses less digits than its factorization.

68271015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197918.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 68271015 is about 8262.6276086969. The cubic root of 68271015 is about 408.7070412820.

The spelling of 68271015 in words is "sixty-eight million, two hundred seventy-one thousand, fifteen".

Divisors: 1 3 5 15 23 69 115 345 197887 593661 989435 2968305 4551401 13654203 22757005 68271015