Search a number
-
+
67769694 = 23219296833
BaseRepresentation
bin1000000101000…
…01010101011110
311201112001112200
410002201111132
5114322112234
610420312330
71452014166
oct402412536
9151461480
1067769694
1135288413
121a8426a6
131106a615
1490015a6
155e39d99
hex40a155e

67769694 has 48 divisors (see below), whose sum is σ = 159915600. Its totient is φ = 20659968.

The previous prime is 67769671. The next prime is 67769711. The reversal of 67769694 is 49696776.

It is a self number, because there is not a number n which added to its sum of digits gives 67769694.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6502 + ... + 13334.

It is an arithmetic number, because the mean of its divisors is an integer number (3331575).

Almost surely, 267769694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67769694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79957800).

67769694 is an abundant number, since it is smaller than the sum of its proper divisors (92145906).

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

67769694 is a wasteful number, since it uses less digits than its factorization.

67769694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6886 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 67769694 is about 8232.2350549532. The cubic root of 67769694 is about 407.7041901385.

The spelling of 67769694 in words is "sixty-seven million, seven hundred sixty-nine thousand, six hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 29 38 57 58 87 114 171 174 261 342 522 551 1102 1653 3306 4959 6833 9918 13666 20499 40998 61497 122994 129827 198157 259654 389481 396314 594471 778962 1168443 1188942 1783413 2336886 3566826 3764983 7529966 11294949 22589898 33884847 67769694