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68073400147 = 433794177051
BaseRepresentation
bin111111011001011111…
…011010011101010011
320111201011010000201111
4333121133122131103
52103403242301042
651134505114151
74626631232314
oct773137323523
9214634100644
1068073400147
1126962729095
1211239788957
13655b25c63c
14341abc660b
151b863eb517
hexfd97da753

68073400147 has 8 divisors (see below), whose sum is σ = 69840309440. Its totient is φ = 66314845800.

The previous prime is 68073400117. The next prime is 68073400189. The reversal of 68073400147 is 74100437086.

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 68073400147 - 215 = 68073367379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68073400117) 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, 2072229 + ... + 2104822.

It is an arithmetic number, because the mean of its divisors is an integer number (8730038680).

Almost surely, 268073400147 is an apocalyptic number.

68073400147 is a deficient number, since it is larger than the sum of its proper divisors (1766909293).

68073400147 is a wasteful number, since it uses less digits than its factorization.

68073400147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177473.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 68073400147 in words is "sixty-eight billion, seventy-three million, four hundred thousand, one hundred forty-seven".

Divisors: 1 43 379 16297 4177051 179613193 1583102329 68073400147