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2987742 = 23497957
BaseRepresentation
bin1011011001011011011110
312121210102010
423121123132
51231101432
6144012050
734252422
oct13313336
95553363
102987742
11176080a
121001026
13807bc4
1457ab82
153e03cc
hex2d96de

2987742 has 8 divisors (see below), whose sum is σ = 5975496. Its totient is φ = 995912.

The previous prime is 2987737. The next prime is 2987753. The reversal of 2987742 is 2477892.

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

2987742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2987742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248973 + ... + 248984.

It is an arithmetic number, because the mean of its divisors is an integer number (746937).

22987742 is an apocalyptic number.

2987742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2987742 is a wasteful number, since it uses less digits than its factorization.

2987742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497962.

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

The square root of 2987742 is about 1728.5086057061. The cubic root of 2987742 is about 144.0282544866.

The spelling of 2987742 in words is "two million, nine hundred eighty-seven thousand, seven hundred forty-two".

Divisors: 1 2 3 6 497957 995914 1493871 2987742