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64074111217 = 197853429431
BaseRepresentation
bin111011101011000111…
…010101100011110001
320010101102202002200021
4323223013111203301
52022210433024332
645234002323441
74425546646654
oct735307254361
9203342662607
1064074111217
11251a0190126
1210502359581
13607182979c
14315b9b989b
151a00266c97
hexeeb1d58f1

64074111217 has 8 divisors (see below), whose sum is σ = 67455178560. Its totient is φ = 60693918480.

The previous prime is 64074111193. The next prime is 64074111251. The reversal of 64074111217 is 71211147046.

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 64074111217 - 227 = 63939893489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64074111317) 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, 65509 + ... + 363922.

It is an arithmetic number, because the mean of its divisors is an integer number (8431897320).

Almost surely, 264074111217 is an apocalyptic number.

It is an amenable number.

64074111217 is a deficient number, since it is larger than the sum of its proper divisors (3381067343).

64074111217 is a wasteful number, since it uses less digits than its factorization.

64074111217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437303.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 64074111217 in words is "sixty-four billion, seventy-four million, one hundred eleven thousand, two hundred seventeen".

Divisors: 1 19 7853 149207 429431 8159189 3372321643 64074111217