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2987225 = 52119489
BaseRepresentation
bin1011011001010011011001
312121202200222
423121103121
51231042400
6144005425
734251053
oct13312331
95552628
102987225
11176038a
121000875
138078b7
1457a8d3
153e0185
hex2d94d9

2987225 has 6 divisors (see below), whose sum is σ = 3704190. Its totient is φ = 2389760.

The previous prime is 2987209. The next prime is 2987251. The reversal of 2987225 is 5227892.

It can be written as a sum of positive squares in 3 ways, for example, as 18496 + 2968729 = 136^2 + 1723^2 .

It is not a de Polignac number, because 2987225 - 24 = 2987209 is a prime.

It is a d-powerful number, because it can be written as 25 + 92 + 87 + 77 + 28 + 216 + 54 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59720 + ... + 59769.

It is an arithmetic number, because the mean of its divisors is an integer number (617365).

22987225 is an apocalyptic number.

2987225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2987225 is a deficient number, since it is larger than the sum of its proper divisors (716965).

2987225 is a wasteful number, since it uses less digits than its factorization.

2987225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119499 (or 119494 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 2987225 is about 1728.3590483461. The cubic root of 2987225 is about 144.0199464396.

The spelling of 2987225 in words is "two million, nine hundred eighty-seven thousand, two hundred twenty-five".

Divisors: 1 5 25 119489 597445 2987225