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3213250525 = 52128530021
BaseRepresentation
bin1011111110000110…
…0100111111011101
322021221022001001201
42333201210333131
523040043004100
61250503035501
7142425115222
oct27741447735
98257261051
103213250525
1113a9883751
1275813bb91
133c292aa94
14226a77949
1513c16936a
hexbf864fdd

3213250525 has 6 divisors (see below), whose sum is σ = 3984430682. Its totient is φ = 2570600400.

The previous prime is 3213250519. The next prime is 3213250549. The reversal of 3213250525 is 5250523123.

It can be written as a sum of positive squares in 3 ways, for example, as 50537881 + 3162712644 = 7109^2 + 56238^2 .

It is not a de Polignac number, because 3213250525 - 211 = 3213248477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213250493 and 3213250502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64264986 + ... + 64265035.

Almost surely, 23213250525 is an apocalyptic number.

It is an amenable number.

3213250525 is a deficient number, since it is larger than the sum of its proper divisors (771180157).

3213250525 is a wasteful number, since it uses less digits than its factorization.

3213250525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128530031 (or 128530026 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 3213250525 is about 56685.5407048394. The cubic root of 3213250525 is about 1475.6437714570.

Adding to 3213250525 its reverse (5250523123), we get a palindrome (8463773648).

The spelling of 3213250525 in words is "three billion, two hundred thirteen million, two hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 128530021 642650105 3213250525