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4312252240 = 245295718229
BaseRepresentation
bin1000000010000011…
…11011111101010000
3102010112021002222221
410001001323331100
532312414032430
61551522310424
7211601352652
oct40101737520
912115232887
104312252240
111913176a2a
12a041b8414
1353951c25a
142cc9d66d2
151a38a457a
hex10107bf50

4312252240 has 40 divisors (see below), whose sum is σ = 10029927240. Its totient is φ = 1724222976.

The previous prime is 4312252201. The next prime is 4312252271. The reversal of 4312252240 is 422522134.

It can be written as a sum of positive squares in 4 ways, for example, as 1101443344 + 3210808896 = 33188^2 + 56664^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227446 + ... + 245674.

It is an arithmetic number, because the mean of its divisors is an integer number (250748181).

Almost surely, 24312252240 is an apocalyptic number.

4312252240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4312252240 is an abundant number, since it is smaller than the sum of its proper divisors (5717675000).

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

4312252240 is a wasteful number, since it uses less digits than its factorization.

4312252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21199 (or 21193 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4312252240 is about 65667.7412433228. The cubic root of 4312252240 is about 1627.6763458207.

Adding to 4312252240 its reverse (422522134), we get a palindrome (4734774374).

The spelling of 4312252240 in words is "four billion, three hundred twelve million, two hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2957 5914 11828 14785 18229 23656 29570 36458 47312 59140 72916 91145 118280 145832 182290 236560 291664 364580 729160 1458320 53903153 107806306 215612612 269515765 431225224 539031530 862450448 1078063060 2156126120 4312252240