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2288396552 = 2313213012
BaseRepresentation
bin1000100001100110…
…0010100100001000
312220111000120220212
42020121202210020
514141312142202
61015024140252
7110465023031
oct21031424410
95814016825
102288396552
11a74816222
1253a467688
132a6141800
14179ccba88
15d5d7d652
hex88662908

2288396552 has 36 divisors (see below), whose sum is σ = 4649763735. Its totient is φ = 1055371200.

The previous prime is 2288396543. The next prime is 2288396603. The reversal of 2288396552 is 2556938822.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 271129156 + 2017267396 = 16466^2 + 44914^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=33826.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2288396552.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1758302 + ... + 1759602.

Almost surely, 22288396552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2288396552

2288396552 is an abundant number, since it is smaller than the sum of its proper divisors (2361367183).

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

2288396552 is an equidigital number, since it uses as much as digits as its factorization.

2288396552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 1316 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 2288396552 is about 47837.1879608323. The cubic root of 2288396552 is about 1317.7825780035.

Multiplying 2288396552 by its sum of digits (50), we get a square (114419827600 = 3382602).

The spelling of 2288396552 in words is "two billion, two hundred eighty-eight million, three hundred ninety-six thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1301 1352 2602 5204 10408 16913 33826 67652 135304 219869 439738 879476 1692601 1758952 3385202 6770404 13540808 22003813 44007626 88015252 176030504 286049569 572099138 1144198276 2288396552