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8313025 = 52767709
BaseRepresentation
bin11111101101100011000001
3120122100022211
4133231203001
54112004100
6454102121
7130442140
oct37554301
916570284
108313025
114768776
12294a941
131950a66
141165757
15ae31ba
hex7ed8c1

8313025 has 24 divisors (see below), whose sum is σ = 11973440. Its totient is φ = 5607360.

The previous prime is 8313001. The next prime is 8313029. The reversal of 8313025 is 5203138.

It is not a de Polignac number, because 8313025 - 221 = 6215873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8312987 and 8313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8313029) 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 23 ways as a sum of consecutive naturals, for example, 11371 + ... + 12079.

Almost surely, 28313025 is an apocalyptic number.

It is an amenable number.

8313025 is a deficient number, since it is larger than the sum of its proper divisors (3660415).

8313025 is a wasteful number, since it uses less digits than its factorization.

8313025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 8313025 is about 2883.2316937770. The cubic root of 8313025 is about 202.5752400384.

Subtracting from 8313025 its sum of digits (22), we obtain a triangular number (8313003 = T4077).

The spelling of 8313025 in words is "eight million, three hundred thirteen thousand, twenty-five".

Divisors: 1 5 7 25 35 67 175 335 469 709 1675 2345 3545 4963 11725 17725 24815 47503 124075 237515 332521 1187575 1662605 8313025