Search a number
-
+
69380077 = 13217193141
BaseRepresentation
bin1000010001010…
…10011111101101
311211112212120111
410020222133231
5120230130302
610515020021
71501502164
oct410523755
9154485514
1069380077
1136188308
121b29a611
13114b2600
1493003db
1561570d7
hex422a7ed

69380077 has 48 divisors (see below), whose sum is σ = 88542720. Its totient is φ = 53913600.

The previous prime is 69380071. The next prime is 69380081. The reversal of 69380077 is 77008396.

It is a de Polignac number, because none of the positive numbers 2k-69380077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69380071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1692177 + ... + 1692217.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 269380077 is an apocalyptic number.

It is an amenable number.

69380077 is a deficient number, since it is larger than the sum of its proper divisors (19162643).

69380077 is a wasteful number, since it uses less digits than its factorization.

69380077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 69380077 is about 8329.4703913274. The cubic root of 69380077 is about 410.9083114497.

The spelling of 69380077 in words is "sixty-nine million, three hundred eighty thousand, seventy-seven".

Divisors: 1 13 17 19 31 41 169 221 247 323 403 527 533 589 697 779 1271 2873 3211 4199 5239 6851 6929 7657 9061 10013 10127 13243 16523 21607 24149 54587 89063 99541 117793 130169 131651 172159 214799 280891 313937 410533 1692197 2238067 3651583 4081181 5336929 69380077