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2987427 = 317193083
BaseRepresentation
bin1011011001010110100011
312121202222110
423121112203
51231044202
6144010403
734251462
oct13312643
95552873
102987427
111760553
121000a03
13807a11
1457a9d9
153e026c
hex2d95a3

2987427 has 16 divisors (see below), whose sum is σ = 4440960. Its totient is φ = 1775232.

The previous prime is 2987407. The next prime is 2987429. The reversal of 2987427 is 7247892.

It is not a de Polignac number, because 2987427 - 211 = 2985379 is a prime.

2987427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2987429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (277560).

22987427 is an apocalyptic number.

2987427 is a deficient number, since it is larger than the sum of its proper divisors (1453533).

2987427 is a wasteful number, since it uses less digits than its factorization.

2987427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its digits is 56448, while the sum is 39.

The square root of 2987427 is about 1728.4174842902. The cubic root of 2987427 is about 144.0231926379.

The spelling of 2987427 in words is "two million, nine hundred eighty-seven thousand, four hundred twenty-seven".

Divisors: 1 3 17 19 51 57 323 969 3083 9249 52411 58577 157233 175731 995809 2987427