Search a number
-
+
68508762 = 237333289
BaseRepresentation
bin1000001010101…
…01110001011010
311202220121100120
410011111301122
5120014240022
610444214110
71461213000
oct405256132
9152817316
1068508762
1135742713
121ab3a336
1311268b3a
149154a70
156033d5c
hex4155c5a

68508762 has 32 divisors (see below), whose sum is σ = 159792000. Its totient is φ = 19573344.

The previous prime is 68508733. The next prime is 68508763. The reversal of 68508762 is 26780586.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68508763) 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, 14587 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (4993500).

Almost surely, 268508762 is an apocalyptic number.

68508762 is an abundant number, since it is smaller than the sum of its proper divisors (91283238).

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

68508762 is a wasteful number, since it uses less digits than its factorization.

68508762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33315 (or 33301 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 68508762 is about 8277.0019934757. The cubic root of 68508762 is about 409.1809187981.

The spelling of 68508762 in words is "sixty-eight million, five hundred eight thousand, seven hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 343 686 1029 2058 33289 66578 99867 199734 233023 466046 699069 1398138 1631161 3262322 4893483 9786966 11418127 22836254 34254381 68508762