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2987223 = 31758573
BaseRepresentation
bin1011011001010011010111
312121202200220
423121103113
51231042343
6144005423
734251051
oct13312327
95552626
102987223
111760388
121000873
138078b5
1457a8d1
153e0183
hex2d94d7

2987223 has 8 divisors (see below), whose sum is σ = 4217328. Its totient is φ = 1874304.

The previous prime is 2987209. The next prime is 2987251. The reversal of 2987223 is 3227892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2987223 - 24 = 2987207 is a prime.

It is a d-powerful number, because it can be written as 22 + 93 + 87 + 77 + 28 + 216 + 3 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29236 + ... + 29337.

It is an arithmetic number, because the mean of its divisors is an integer number (527166).

22987223 is an apocalyptic number.

2987223 is a deficient number, since it is larger than the sum of its proper divisors (1230105).

2987223 is a wasteful number, since it uses less digits than its factorization.

2987223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58593.

The product of its digits is 12096, while the sum is 33.

The square root of 2987223 is about 1728.3584697626. The cubic root of 2987223 is about 144.0199142983.

The spelling of 2987223 in words is "two million, nine hundred eighty-seven thousand, two hundred twenty-three".

Divisors: 1 3 17 51 58573 175719 995741 2987223