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2990525 = 52375361
BaseRepresentation
bin1011011010000110111101
312121221020012
423122012331
51231144100
6144033005
734263506
oct13320675
95557205
102990525
11176290a
121002765
13809255
1457bbad
153e1135
hex2da1bd

2990525 has 24 divisors (see below), whose sum is σ = 3943944. Its totient is φ = 2246400.

The previous prime is 2990513. The next prime is 2990527. The reversal of 2990525 is 5250992.

It can be written as a sum of positive squares in 12 ways, for example, as 674041 + 2316484 = 821^2 + 1522^2 .

It is not a de Polignac number, because 2990525 - 212 = 2986429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2990491 and 2990500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48995 + ... + 49055.

It is an arithmetic number, because the mean of its divisors is an integer number (164331).

22990525 is an apocalyptic number.

2990525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2990525 is a deficient number, since it is larger than the sum of its proper divisors (953419).

2990525 is a wasteful number, since it uses less digits than its factorization.

2990525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 2990525 is about 1729.3134475855. The cubic root of 2990525 is about 144.0729600695.

The spelling of 2990525 in words is "two million, nine hundred ninety thousand, five hundred twenty-five".

Divisors: 1 5 25 37 53 61 185 265 305 925 1325 1525 1961 2257 3233 9805 11285 16165 49025 56425 80825 119621 598105 2990525