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66470433 = 3107207073
BaseRepresentation
bin1111110110010…
…0001000100001
311122002001021220
43331210020201
5114004023213
610332405253
71434663231
oct375441041
9148061256
1066470433
1134580247
121a316829
1310a04123
148b83cc1
155c7ee23
hex3f64221

66470433 has 8 divisors (see below), whose sum is σ = 89455968. Its totient is φ = 43899264.

The previous prime is 66470429. The next prime is 66470477. The reversal of 66470433 is 33407466.

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

It is not a de Polignac number, because 66470433 - 22 = 66470429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66470394 and 66470403.

It is not an unprimeable number, because it can be changed into a prime (66470333) 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, 103216 + ... + 103857.

It is an arithmetic number, because the mean of its divisors is an integer number (11181996).

Almost surely, 266470433 is an apocalyptic number.

It is an amenable number.

66470433 is a deficient number, since it is larger than the sum of its proper divisors (22985535).

66470433 is a wasteful number, since it uses less digits than its factorization.

66470433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207183.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 66470433 is about 8152.9401445123. The cubic root of 66470433 is about 405.0818977801.

Adding to 66470433 its reverse (33407466), we get a palindrome (99877899).

The spelling of 66470433 in words is "sixty-six million, four hundred seventy thousand, four hundred thirty-three".

Divisors: 1 3 107 321 207073 621219 22156811 66470433