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12078383545451 = 194039931573553
BaseRepresentation
bin1010111111000011011111…
…0000101011110001101011
31120202200102022112210000102
42233300313300223301223
53040343012141423301
641404422141300015
72354430414112436
oct257606760536153
946680368483012
1012078383545451
1139374606a0733
121430a5626460b
13697ca997a202
142da84dbbc81d
1515e2be53eb6b
hexafc37c2bc6b

12078383545451 has 8 divisors (see below), whose sum is σ = 12714127493520. Its totient is φ = 11442643552512.

The previous prime is 12078383545411. The next prime is 12078383545469. The reversal of 12078383545451 is 15454538387021.

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

It is a cyclic number.

It is not a de Polignac number, because 12078383545451 - 210 = 12078383544427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078383545411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6889091 + ... + 8462643.

It is an arithmetic number, because the mean of its divisors is an integer number (1589265936690).

Almost surely, 212078383545451 is an apocalyptic number.

12078383545451 is a deficient number, since it is larger than the sum of its proper divisors (635743948069).

12078383545451 is a wasteful number, since it uses less digits than its factorization.

12078383545451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977565.

The product of its (nonzero) digits is 16128000, while the sum is 56.

The spelling of 12078383545451 in words is "twelve trillion, seventy-eight billion, three hundred eighty-three million, five hundred forty-five thousand, four hundred fifty-one".

Divisors: 1 19 403993 1573553 7675867 29897507 635704397129 12078383545451