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2239688704 = 2121124519
BaseRepresentation
bin1000010101111110…
…1111000000000000
312210002100222022111
42011133233000000
514041330014304
61010124145104
7106334016451
oct20537570000
95702328274
102239688704
11a4a278300
12526098194
132990195b6
1417364d128
15d195b704
hex857ef000

2239688704 has 78 divisors (see below), whose sum is σ = 4924101560. Its totient is φ = 1017815040.

The previous prime is 2239688701. The next prime is 2239688719. The reversal of 2239688704 is 4078869322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239688701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 493357 + ... + 497875.

Almost surely, 22239688704 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 2239688704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462050780).

2239688704 is an abundant number, since it is smaller than the sum of its proper divisors (2684412856).

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

2239688704 is an equidigital number, since it uses as much as digits as its factorization.

2239688704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 2239688704 is about 47325.3494862954. The cubic root of 2239688704 is about 1308.3659099664.

The spelling of 2239688704 in words is "two billion, two hundred thirty-nine million, six hundred eighty-eight thousand, seven hundred four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 512 704 968 1024 1408 1936 2048 2816 3872 4096 4519 5632 7744 9038 11264 15488 18076 22528 30976 36152 45056 49709 61952 72304 99418 123904 144608 198836 247808 289216 397672 495616 546799 578432 795344 1093598 1156864 1590688 2187196 2313728 3181376 4374392 4627456 6362752 8748784 9254912 12725504 17497568 18509824 25451008 34995136 50902016 69990272 101804032 139980544 203608064 279961088 559922176 1119844352 2239688704