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1009825 = 52311303
BaseRepresentation
bin11110110100010100001
31220022012221
43312202201
5224303300
633351041
711404045
oct3664241
91808187
101009825
1162a773
12408481
1329483b
141c4025
1514e31a
hexf68a1

1009825 has 12 divisors (see below), whose sum is σ = 1293568. Its totient is φ = 781200.

The previous prime is 1009819. The next prime is 1009837. The reversal of 1009825 is 5289001.

1009825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1009825 - 215 = 977057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1009825.

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, 124 + ... + 1426.

21009825 is an apocalyptic number.

It is an amenable number.

1009825 is a deficient number, since it is larger than the sum of its proper divisors (283743).

1009825 is a wasteful number, since it uses less digits than its factorization.

1009825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1009825 is about 1004.9004925862. The cubic root of 1009825 is about 100.3264332538.

The spelling of 1009825 in words is "one million, nine thousand, eight hundred twenty-five".

Divisors: 1 5 25 31 155 775 1303 6515 32575 40393 201965 1009825