Search a number
-
+
20069502 = 2318111847
BaseRepresentation
bin100110010001…
…1110001111110
31101202122011220
41030203301332
520114211002
61554054210
7332405445
oct114436176
941678156
1020069502
1110368572
12687a366
134208c5b
142945d5c
151b667bc
hex1323c7e

20069502 has 16 divisors (see below), whose sum is σ = 40182912. Its totient is φ = 6682520.

The previous prime is 20069473. The next prime is 20069507. The reversal of 20069502 is 20596002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9943 + ... + 11789.

It is an arithmetic number, because the mean of its divisors is an integer number (2511432).

Almost surely, 220069502 is an apocalyptic number.

20069502 is an abundant number, since it is smaller than the sum of its proper divisors (20113410).

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

20069502 is a wasteful number, since it uses less digits than its factorization.

20069502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 20069502 is about 4479.8997756646. The cubic root of 20069502 is about 271.7558272255.

The spelling of 20069502 in words is "twenty million, sixty-nine thousand, five hundred two".

Divisors: 1 2 3 6 1811 1847 3622 3694 5433 5541 10866 11082 3344917 6689834 10034751 20069502