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290148125 = 54464237
BaseRepresentation
bin10001010010110…
…100111100011101
3202012222001101212
4101102310330131
51043234220000
644442514205
710122134621
oct2122647435
9665861355
10290148125
11139865643
1281205965
134815b7a7
142a76b181
151a714c35
hex114b4f1d

290148125 has 10 divisors (see below), whose sum is σ = 362569878. Its totient is φ = 232118000.

The previous prime is 290148113. The next prime is 290148149. The reversal of 290148125 is 521841092.

It can be written as a sum of positive squares in 5 ways, for example, as 117462244 + 172685881 = 10838^2 + 13141^2 .

It is a de Polignac number, because none of the positive numbers 2k-290148125 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 = 290148091 and 290148100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 231494 + ... + 232743.

Almost surely, 2290148125 is an apocalyptic number.

290148125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290148125 is a deficient number, since it is larger than the sum of its proper divisors (72421753).

290148125 is an frugal number, since it uses more digits than its factorization.

290148125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464257 (or 464242 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 290148125 is about 17033.7349104652. The cubic root of 290148125 is about 662.0232716055.

The spelling of 290148125 in words is "two hundred ninety million, one hundred forty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 464237 2321185 11605925 58029625 290148125