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23305686244 = 2237220632
BaseRepresentation
bin10101101101001000…
…001000110011100100
32020011012202112021121
4111231020020303210
5340212223424434
614412333423324
71453352031061
oct255510106344
966135675247
1023305686244
11997a4a8025
12462503ab44
1322754cb1b9
1411b1341c68
159160937b4
hex56d208ce4

23305686244 has 27 divisors (see below), whose sum is σ = 41937367017. Its totient is φ = 11332405584.

The previous prime is 23305686203. The next prime is 23305686247. The reversal of 23305686244 is 44268650332.

It is a happy number.

The square root of 23305686244 is 152662.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20854248100 + 2451438144 = 144410^2 + 49512^2 .

It is a super-2 number, since 2×233056862442 (a number of 22 digits) contains 22 as substring.

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 23305686244.

It is not an unprimeable number, because it can be changed into a prime (23305686247) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11295957 + ... + 11298019.

Almost surely, 223305686244 is an apocalyptic number.

23305686244 is the 152662-nd square number.

It is an amenable number.

23305686244 is a deficient number, since it is larger than the sum of its proper divisors (18631680773).

23305686244 is an frugal number, since it uses more digits than its factorization.

23305686244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 23305686244 in words is "twenty-three billion, three hundred five million, six hundred eighty-six thousand, two hundred forty-four".

Divisors: 1 2 4 37 74 148 1369 2063 2738 4126 5476 8252 76331 152662 305324 2824247 4255969 5648494 8511938 11296988 17023876 157470853 314941706 629883412 5826421561 11652843122 23305686244