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3149825 = 52741439
BaseRepresentation
bin1100000001000000000001
312221000202012
430001000001
51301243300
6151302305
735526110
oct14010001
95830665
103149825
111861568
12107a995
13863903
145bdc77
15423435
hex301001

3149825 has 24 divisors (see below), whose sum is σ = 4583040. Its totient is φ = 2102400.

The previous prime is 3149821. The next prime is 3149831. The reversal of 3149825 is 5289413.

It is not a de Polignac number, because 3149825 - 22 = 3149821 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3149791 and 3149800.

It is not an unprimeable number, because it can be changed into a prime (3149821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6956 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (190960).

It is a Proth number, since it is equal to 769 ⋅ 212 + 1 and 769 < 212.

Almost surely, 23149825 is an apocalyptic number.

3149825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3149825 is the 1025-th octagonal number.

It is an amenable number.

3149825 is a deficient number, since it is larger than the sum of its proper divisors (1433215).

3149825 is a wasteful number, since it uses less digits than its factorization.

3149825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 492 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 3149825 is about 1774.7746335803. The cubic root of 3149825 is about 146.5870062131.

The spelling of 3149825 in words is "three million, one hundred forty-nine thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 41 175 205 287 439 1025 1435 2195 3073 7175 10975 15365 17999 76825 89995 125993 449975 629965 3149825