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2887998 = 233713009
BaseRepresentation
bin1011000001000100111110
312102201120220
423001010332
51214403443
6141522210
733355551
oct13010476
95381526
102887998
1116a2883
12b73366
137a1699
14552698
153c0a83
hex2c113e

2887998 has 16 divisors (see below), whose sum is σ = 5932560. Its totient is φ = 936576.

The previous prime is 2887993. The next prime is 2888021. The reversal of 2887998 is 8997882.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2887998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6283 + ... + 6726.

It is an arithmetic number, because the mean of its divisors is an integer number (370785).

22887998 is an apocalyptic number.

2887998 is an abundant number, since it is smaller than the sum of its proper divisors (3044562).

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

2887998 is a wasteful number, since it uses less digits than its factorization.

2887998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13051.

The product of its digits is 580608, while the sum is 51.

The square root of 2887998 is about 1699.4110744608. The cubic root of 2887998 is about 142.4073143047.

The spelling of 2887998 in words is "two million, eight hundred eighty-seven thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 37 74 111 222 13009 26018 39027 78054 481333 962666 1443999 2887998