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2987390 = 25742677
BaseRepresentation
bin1011011001010101111110
312121202221002
423121111332
51231044030
6144010302
734251410
oct13312576
95552832
102987390
11176051a
121000992
138079b3
1457a9b0
153e0245
hex2d957e

2987390 has 16 divisors (see below), whose sum is σ = 6145632. Its totient is φ = 1024224.

The previous prime is 2987371. The next prime is 2987407. The reversal of 2987390 is 937892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21269 + ... + 21408.

It is an arithmetic number, because the mean of its divisors is an integer number (384102).

22987390 is an apocalyptic number.

2987390 is an abundant number, since it is smaller than the sum of its proper divisors (3158242).

2987390 is a wasteful number, since it uses less digits than its factorization.

2987390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42691.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2987390 is about 1728.4067808245. The cubic root of 2987390 is about 144.0225980481.

The spelling of 2987390 in words is "two million, nine hundred eighty-seven thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 42677 85354 213385 298739 426770 597478 1493695 2987390