Search a number
-
+
20020032130 = 257286000459
BaseRepresentation
bin10010101001010010…
…010111001010000010
31220200020020000011111
4102221102113022002
5312000112012010
613110322433534
71306054315420
oct225122271202
956606200144
1020020032130
1185438714aa
123a688028aa
131b7089c877
14d7cc1c110
157c28c658a
hex4a9497282

20020032130 has 16 divisors (see below), whose sum is σ = 41184066240. Its totient is φ = 6864010992.

The previous prime is 20020032127. The next prime is 20020032169. The reversal of 20020032130 is 3123002002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020032130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143000160 + ... + 143000299.

It is an arithmetic number, because the mean of its divisors is an integer number (2574004140).

Almost surely, 220020032130 is an apocalyptic number.

20020032130 is an abundant number, since it is smaller than the sum of its proper divisors (21164034110).

20020032130 is a wasteful number, since it uses less digits than its factorization.

20020032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286000473.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20020032130 its reverse (3123002002), we get a palindrome (23143034132).

The spelling of 20020032130 in words is "twenty billion, twenty million, thirty-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 286000459 572000918 1430002295 2002003213 2860004590 4004006426 10010016065 20020032130