Search a number
-
+
69650020146 = 2371987280727
BaseRepresentation
bin100000011011101110…
…1101111011100110010
320122210000210121202210
41000313131233130302
52120120401121041
651555145352550
75013664255140
oct1006735573462
9218700717683
1069650020146
11275a1691023
12115b9798756
13674ca9a695
14352a352590
151c29a2d016
hex103776f732

69650020146 has 32 divisors (see below), whose sum is σ = 167578997760. Its totient is φ = 18852636816.

The previous prime is 69650020123. The next prime is 69650020147. The reversal of 69650020146 is 64102005696.

It is a super-2 number, since 2×696500201462 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69650020147) 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, 43639566 + ... + 43641161.

It is an arithmetic number, because the mean of its divisors is an integer number (5236843680).

Almost surely, 269650020146 is an apocalyptic number.

69650020146 is an abundant number, since it is smaller than the sum of its proper divisors (97928977614).

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

69650020146 is a wasteful number, since it uses less digits than its factorization.

69650020146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87280758.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 69650020146 in words is "sixty-nine billion, six hundred fifty million, twenty thousand, one hundred forty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 87280727 174561454 261842181 523684362 610965089 1221930178 1658333813 1832895267 3316667626 3665790534 4975001439 9950002878 11608336691 23216673382 34825010073 69650020146