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8722625 = 53312251
BaseRepresentation
bin100001010001…
…100011000001
3121102011012012
4201101203001
54213111000
6510542305
7134066252
oct41214301
917364165
108722625
114a1848a
122b07995
131a65322
141230b29
15b74735
hex8518c1

8722625 has 16 divisors (see below), whose sum is σ = 11241984. Its totient is φ = 6750000.

The previous prime is 8722621. The next prime is 8722631. The reversal of 8722625 is 5262278.

It is not a de Polignac number, because 8722625 - 22 = 8722621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8722591 and 8722600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2750 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (702624).

Almost surely, 28722625 is an apocalyptic number.

It is an amenable number.

8722625 is a deficient number, since it is larger than the sum of its proper divisors (2519359).

8722625 is a wasteful number, since it uses less digits than its factorization.

8722625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2287 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 8722625 is about 2953.4090471860. The cubic root of 8722625 is about 205.8491449041.

The spelling of 8722625 in words is "eight million, seven hundred twenty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 31 125 155 775 2251 3875 11255 56275 69781 281375 348905 1744525 8722625