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290625 = 35531
BaseRepresentation
bin1000110111101000001
3112202122220
41012331001
533300000
610121253
72320206
oct1067501
9482586
10290625
11189395
12120229
13a238a
1477cad
155b1a0
hex46f41

290625 has 24 divisors (see below), whose sum is σ = 499968. Its totient is φ = 150000.

The previous prime is 290623. The next prime is 290627. The reversal of 290625 is 526092.

It is an interprime number because it is at equal distance from previous prime (290623) and next prime (290627).

It is not a de Polignac number, because 290625 - 21 = 290623 is a prime.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 290595 and 290604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9360 + ... + 9390.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2290625 is an apocalyptic number.

290625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290625 is a deficient number, since it is larger than the sum of its proper divisors (209343).

290625 is an frugal number, since it uses more digits than its factorization.

290625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 290625 is about 539.0964663212. The cubic root of 290625 is about 66.2385764093.

The spelling of 290625 in words is "two hundred ninety thousand, six hundred twenty-five".

Divisors: 1 3 5 15 25 31 75 93 125 155 375 465 625 775 1875 2325 3125 3875 9375 11625 19375 58125 96875 290625