[go: up one dir, main page]

Search a number
-
+
66620616 = 2332775859
BaseRepresentation
bin1111111000100…
…0110011001000
311122100200022020
43332020303020
5114023324431
610335524440
71436160126
oct376106310
9148320266
1066620616
1134673067
121a389720
1310a575aa
148bc2916
155cae696
hex3f88cc8

66620616 has 16 divisors (see below), whose sum is σ = 166551600. Its totient is φ = 22206864.

The previous prime is 66620611. The next prime is 66620633. The reversal of 66620616 is 61602666.

66620616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66620611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387906 + ... + 1387953.

It is an arithmetic number, because the mean of its divisors is an integer number (10409475).

Almost surely, 266620616 is an apocalyptic number.

It is an amenable number.

66620616 is an abundant number, since it is smaller than the sum of its proper divisors (99930984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66620616 is a wasteful number, since it uses less digits than its factorization.

66620616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775868 (or 2775864 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 66620616 is about 8162.1453062292. The cubic root of 66620616 is about 405.3867483806.

The spelling of 66620616 in words is "sixty-six million, six hundred twenty thousand, six hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 2775859 5551718 8327577 11103436 16655154 22206872 33310308 66620616