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2207725 = 52136793
BaseRepresentation
bin1000011010111111101101
311011011102121
420122333231
51031121400
6115152541
724523342
oct10327755
94134377
102207725
111278773
128a5751
135c3b60
144167c9
152d921a
hex21afed

2207725 has 12 divisors (see below), whose sum is σ = 2948596. Its totient is φ = 1630080.

The previous prime is 2207719. The next prime is 2207783. The reversal of 2207725 is 5277022.

It can be written as a sum of positive squares in 6 ways, for example, as 635209 + 1572516 = 797^2 + 1254^2 .

It is not a de Polignac number, because 2207725 - 29 = 2207213 is a prime.

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

It is a Duffinian number.

2207725 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2207725.

It is a congruent number.

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, 3072 + ... + 3721.

22207725 is an apocalyptic number.

2207725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2207725 is a deficient number, since it is larger than the sum of its proper divisors (740871).

2207725 is a wasteful number, since it uses less digits than its factorization.

2207725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816 (or 6811 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 2207725 is about 1485.8415124097. The cubic root of 2207725 is about 130.2111951727.

The spelling of 2207725 in words is "two million, two hundred seven thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 65 325 6793 33965 88309 169825 441545 2207725