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2254142020 = 225138669777
BaseRepresentation
bin1000011001011011…
…0111101001000100
312211002120021112111
42012112313221010
514104030021040
61011402030404
7106600614424
oct20626675104
95732507474
102254142020
11a5744a299
1252aaa8404
1329c00a160
14175532484
15d2d63dea
hex865b7a44

2254142020 has 24 divisors (see below), whose sum is σ = 5097829464. Its totient is φ = 832298496.

The previous prime is 2254142017. The next prime is 2254142027. The reversal of 2254142020 is 202414522.

It can be written as a sum of positive squares in 4 ways, for example, as 11930116 + 2242211904 = 3454^2 + 47352^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2254141982 and 2254142000.

It is not an unprimeable number, because it can be changed into a prime (2254142027) 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, 4334629 + ... + 4335148.

It is an arithmetic number, because the mean of its divisors is an integer number (212409561).

Almost surely, 22254142020 is an apocalyptic number.

2254142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2254142020 is an abundant number, since it is smaller than the sum of its proper divisors (2843687444).

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

2254142020 is a wasteful number, since it uses less digits than its factorization.

2254142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8669799 (or 8669797 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2254142020 is about 47477.8055516470. The cubic root of 2254142020 is about 1311.1742903631.

Adding to 2254142020 its reverse (202414522), we get a palindrome (2456556542).

The spelling of 2254142020 in words is "two billion, two hundred fifty-four million, one hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 8669777 17339554 34679108 43348885 86697770 112707101 173395540 225414202 450828404 563535505 1127071010 2254142020