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12023001224 = 2313115605781
BaseRepresentation
bin10110011001010000…
…00111000010001000
31011000220101202002122
423030220013002020
5144110342014344
65305010350412
7603640552463
oct131450070210
934026352078
1012023001224
11510a741853
1223b658b408
131197b59010
14820ac82da
154a57b5aee
hex2cca07088

12023001224 has 16 divisors (see below), whose sum is σ = 24277214220. Its totient is φ = 5549077440.

The previous prime is 12023001217. The next prime is 12023001229. The reversal of 12023001224 is 42210032021.

It can be written as a sum of positive squares in 2 ways, for example, as 9883938724 + 2139062500 = 99418^2 + 46250^2 .

It is a super-3 number, since 3×120230012243 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12023001229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57802787 + ... + 57802994.

Almost surely, 212023001224 is an apocalyptic number.

It is an amenable number.

12023001224 is an abundant number, since it is smaller than the sum of its proper divisors (12254212996).

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

12023001224 is a wasteful number, since it uses less digits than its factorization.

12023001224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115605800 (or 115605796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12023001224 its reverse (42210032021), we get a palindrome (54233033245).

The spelling of 12023001224 in words is "twelve billion, twenty-three million, one thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 115605781 231211562 462423124 924846248 1502875153 3005750306 6011500612 12023001224