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3212555085 = 32571390113
BaseRepresentation
bin1011111101111011…
…1011001101001101
322021212222201002200
42333132323031031
523034403230320
61250440112113
7142416160545
oct27736731515
98255881080
103212555085
1113a9449203
12757a65639
133c274638c
14226936325
1513c07d290
hexbf7bb34d

3212555085 has 12 divisors (see below), whose sum is σ = 5568428892. Its totient is φ = 1713362688.

The previous prime is 3212555033. The next prime is 3212555113. The reversal of 3212555085 is 5805552123.

3212555085 is a `hidden beast` number, since 3 + 2 + 1 + 25 + 550 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1567684836 + 1644870249 = 39594^2 + 40557^2 .

It is not a de Polignac number, because 3212555085 - 210 = 3212554061 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35695012 + ... + 35695101.

It is an arithmetic number, because the mean of its divisors is an integer number (464035741).

Almost surely, 23212555085 is an apocalyptic number.

It is an amenable number.

3212555085 is a deficient number, since it is larger than the sum of its proper divisors (2355873807).

3212555085 is a wasteful number, since it uses less digits than its factorization.

3212555085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71390124 (or 71390121 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 3212555085 is about 56679.4061807285. The cubic root of 3212555085 is about 1475.5373064989.

The spelling of 3212555085 in words is "three billion, two hundred twelve million, five hundred fifty-five thousand, eighty-five".

Divisors: 1 3 5 9 15 45 71390113 214170339 356950565 642511017 1070851695 3212555085