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12344927690 = 251234492769
BaseRepresentation
bin10110111111101000…
…01010010111001010
31011212100011022012002
423133310022113022
5200240300141230
65400550351002
7614630103554
oct133764122712
934770138162
1012344927690
115265431987
12248635b462
131219763054
148517684d4
154c3ba6545
hex2dfd0a5ca

12344927690 has 8 divisors (see below), whose sum is σ = 22220869860. Its totient is φ = 4937971072.

The previous prime is 12344927681. The next prime is 12344927713. The reversal of 12344927690 is 9672944321.

It can be written as a sum of positive squares in 2 ways, for example, as 12311899681 + 33028009 = 110959^2 + 5747^2 .

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

It is a super-2 number, since 2×123449276902 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617246375 + ... + 617246394.

Almost surely, 212344927690 is an apocalyptic number.

12344927690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12344927690 is a deficient number, since it is larger than the sum of its proper divisors (9875942170).

12344927690 is a wasteful number, since it uses less digits than its factorization.

12344927690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234492776.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 12344927690 in words is "twelve billion, three hundred forty-four million, nine hundred twenty-seven thousand, six hundred ninety".

Divisors: 1 2 5 10 1234492769 2468985538 6172463845 12344927690