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66200807 = 193794169
BaseRepresentation
bin1111110010001…
…0010011100111
311121120100102202
43330202103213
5113421411212
610322525115
71432461161
oct374422347
9147510382
1066200807
1134406712
121a20679b
131093b49a
148b13931
155c2a0c2
hex3f224e7

66200807 has 8 divisors (see below), whose sum is σ = 71569200. Its totient is φ = 61020864.

The previous prime is 66200803. The next prime is 66200809. The reversal of 66200807 is 70800266.

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 66200807 - 22 = 66200803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66200807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66200801) 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, 46382 + ... + 47787.

It is an arithmetic number, because the mean of its divisors is an integer number (8946150).

Almost surely, 266200807 is an apocalyptic number.

66200807 is a deficient number, since it is larger than the sum of its proper divisors (5368393).

66200807 is a wasteful number, since it uses less digits than its factorization.

66200807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94225.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 66200807 is about 8136.3878349056. The cubic root of 66200807 is about 404.5334402740.

The spelling of 66200807 in words is "sixty-six million, two hundred thousand, eight hundred seven".

Divisors: 1 19 37 703 94169 1789211 3484253 66200807