Search a number
-
+
68578629 = 3717192097
BaseRepresentation
bin1000001011001…
…10110101000101
311210001011012020
410011212311011
5120024004004
610445513353
71461623460
oct405466505
9153034166
1068578629
1135790159
121ab72859
1311291892
1491722d7
1560498d9
hex4166d45

68578629 has 16 divisors (see below), whose sum is σ = 110648448. Its totient is φ = 36882432.

The previous prime is 68578607. The next prime is 68578633. The reversal of 68578629 is 92687586.

It is not a de Polignac number, because 68578629 - 25 = 68578597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68578669) 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, 95692 + ... + 96405.

It is an arithmetic number, because the mean of its divisors is an integer number (6915528).

Almost surely, 268578629 is an apocalyptic number.

It is an amenable number.

68578629 is a deficient number, since it is larger than the sum of its proper divisors (42069819).

68578629 is a wasteful number, since it uses less digits than its factorization.

68578629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192124.

The product of its digits is 1451520, while the sum is 51.

The square root of 68578629 is about 8281.2214678754. The cubic root of 68578629 is about 409.3199692863.

The spelling of 68578629 in words is "sixty-eight million, five hundred seventy-eight thousand, six hundred twenty-nine".

Divisors: 1 3 7 17 21 51 119 357 192097 576291 1344679 3265649 4034037 9796947 22859543 68578629