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2872492 = 227173593
BaseRepresentation
bin1010111101010010101100
312101221022121
422331102230
51213404432
6141322324
733262420
oct12752254
95357277
102872492
111692167
12b663a4
137975cc
1454ab80
153bb197
hex2bd4ac

2872492 has 24 divisors (see below), whose sum is σ = 5787936. Its totient is φ = 1221888.

The previous prime is 2872481. The next prime is 2872523. The reversal of 2872492 is 2942782.

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, 4548 + ... + 5140.

It is an arithmetic number, because the mean of its divisors is an integer number (241164).

22872492 is an apocalyptic number.

2872492 is the 1384-th pentagonal number.

It is an amenable number.

2872492 is an abundant number, since it is smaller than the sum of its proper divisors (2915444).

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

2872492 is a wasteful number, since it uses less digits than its factorization.

With its successor (2872493) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (775).

2872492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 775 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 2872492 is about 1694.8427655685. The cubic root of 2872492 is about 142.1519896107.

It can be divided in two parts, 2872 and 492, that added together give a square (3364 = 582).

The spelling of 2872492 in words is "two million, eight hundred seventy-two thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 173 346 593 692 1186 1211 2372 2422 4151 4844 8302 16604 102589 205178 410356 718123 1436246 2872492