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12372420454 = 237167194871
BaseRepresentation
bin10111000010111010…
…00010011101100110
31011221020220002011121
423201131002131212
5200314314423304
65403411524154
7615412560442
oct134135023546
934836802147
1012372420454
1152799aa679
1224935b965a
13122236aa64
14855283822
154c62d7554
hex2e1742766

12372420454 has 8 divisors (see below), whose sum is σ = 19060215408. Its totient is φ = 6019015320.

The previous prime is 12372420449. The next prime is 12372420457. The reversal of 12372420454 is 45402427321.

12372420454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×123724204542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12372420457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83597362 + ... + 83597509.

It is an arithmetic number, because the mean of its divisors is an integer number (2382526926).

Almost surely, 212372420454 is an apocalyptic number.

12372420454 is a deficient number, since it is larger than the sum of its proper divisors (6687794954).

12372420454 is a wasteful number, since it uses less digits than its factorization.

12372420454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167194910.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 12372420454 its reverse (45402427321), we get a palindrome (57774847775).

The spelling of 12372420454 in words is "twelve billion, three hundred seventy-two million, four hundred twenty thousand, four hundred fifty-four".

Divisors: 1 2 37 74 167194871 334389742 6186210227 12372420454