Search a number
-
+
2103350420 = 225105167521
BaseRepresentation
bin111110101011110…
…1001010010010100
312102120211021100102
41331113221102110
513301424203140
6544414033232
7103060116653
oct17527512224
95376737312
102103350420
1198a317336
124a84a8818
132769c1b62
1415d4bd19a
15c49c9e15
hex7d5e9494

2103350420 has 12 divisors (see below), whose sum is σ = 4417035924. Its totient is φ = 841340160.

The previous prime is 2103350401. The next prime is 2103350443. The reversal of 2103350420 is 240533012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1462450564 + 640899856 = 38242^2 + 25316^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 105167521 = 2103350420 / (2 + 1 + 0 + 3 + 3 + 5 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2103350392 and 2103350401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52583741 + ... + 52583780.

It is an arithmetic number, because the mean of its divisors is an integer number (368086327).

Almost surely, 22103350420 is an apocalyptic number.

2103350420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103350420 is an abundant number, since it is smaller than the sum of its proper divisors (2313685504).

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

2103350420 is a wasteful number, since it uses less digits than its factorization.

2103350420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105167530 (or 105167528 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2103350420 is about 45862.2984596280. The cubic root of 2103350420 is about 1281.2598313900.

Adding to 2103350420 its reverse (240533012), we get a palindrome (2343883432).

The spelling of 2103350420 in words is "two billion, one hundred three million, three hundred fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 105167521 210335042 420670084 525837605 1051675210 2103350420