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2989520 = 24537369
BaseRepresentation
bin1011011001110111010000
312121212211222
423121313100
51231131040
6144024212
734260542
oct13316720
95555758
102989520
111762086
121002068
13808961
1457b692
153e0bb5
hex2d9dd0

2989520 has 20 divisors (see below), whose sum is σ = 6950820. Its totient is φ = 1195776.

The previous prime is 2989513. The next prime is 2989531. The reversal of 2989520 is 259892.

It can be written as a sum of positive squares in 2 ways, for example, as 1752976 + 1236544 = 1324^2 + 1112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 18605 + ... + 18764.

It is an arithmetic number, because the mean of its divisors is an integer number (347541).

22989520 is an apocalyptic number.

2989520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989520 is an abundant number, since it is smaller than the sum of its proper divisors (3961300).

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

2989520 is a wasteful number, since it uses less digits than its factorization.

2989520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37382 (or 37376 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 2989520 is about 1729.0228454245. The cubic root of 2989520 is about 144.0568191413.

The spelling of 2989520 in words is "two million, nine hundred eighty-nine thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 37369 74738 149476 186845 298952 373690 597904 747380 1494760 2989520