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12434404330 = 251243440433
BaseRepresentation
bin10111001010010010…
…11111001111101010
31012002120112012001201
423211021133033222
5200431201414310
65413504234414
7620064456445
oct134511371752
935076465051
1012434404330
115300996017
1224b030ba0a
1312321609ca
1485d5ba65c
154cb97ce3a
hex2e525f3ea

12434404330 has 8 divisors (see below), whose sum is σ = 22381927812. Its totient is φ = 4973761728.

The previous prime is 12434404313. The next prime is 12434404331. The reversal of 12434404330 is 3340443421.

It can be written as a sum of positive squares in 2 ways, for example, as 12330547849 + 103856481 = 111043^2 + 10191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×124344043302 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12434404331) 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, 621720207 + ... + 621720226.

Almost surely, 212434404330 is an apocalyptic number.

12434404330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12434404330 is a deficient number, since it is larger than the sum of its proper divisors (9947523482).

12434404330 is a wasteful number, since it uses less digits than its factorization.

12434404330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243440440.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12434404330 its reverse (3340443421), we get a palindrome (15774847751).

The spelling of 12434404330 in words is "twelve billion, four hundred thirty-four million, four hundred four thousand, three hundred thirty".

Divisors: 1 2 5 10 1243440433 2486880866 6217202165 12434404330