Search a number
-
+
20332031120 = 245254150389
BaseRepresentation
bin10010111011111000…
…100010110010010000
31221110222022012022122
4102323320202302100
5313114444443440
613201305553412
71316563261442
oct227370426220
957428265278
1020332031120
1186939a0a05
123b351a5868
131bc040c05b
14dac436492
157deea57b5
hex4bbe22c90

20332031120 has 20 divisors (see below), whose sum is σ = 47271972540. Its totient is φ = 8132812416.

The previous prime is 20332031087. The next prime is 20332031177. The reversal of 20332031120 is 2113023302.

It can be written as a sum of positive squares in 2 ways, for example, as 16209363856 + 4122667264 = 127316^2 + 64208^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127075115 + ... + 127075274.

It is an arithmetic number, because the mean of its divisors is an integer number (2363598627).

Almost surely, 220332031120 is an apocalyptic number.

20332031120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332031120 is an abundant number, since it is smaller than the sum of its proper divisors (26939941420).

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

20332031120 is a wasteful number, since it uses less digits than its factorization.

20332031120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254150402 (or 254150396 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20332031120 its reverse (2113023302), we get a palindrome (22445054422).

The spelling of 20332031120 in words is "twenty billion, three hundred thirty-two million, thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 254150389 508300778 1016601556 1270751945 2033203112 2541503890 4066406224 5083007780 10166015560 20332031120