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290268502 = 2145134251
BaseRepresentation
bin10001010011010…
…010010101010110
3202020012011112021
4101103102111112
51043302043002
644445243354
710123145566
oct2123222526
9666164467
10290268502
11139938027
128126355a
13481a1514
142a79cda6
151a73a737
hex114d2556

290268502 has 4 divisors (see below), whose sum is σ = 435402756. Its totient is φ = 145134250.

The previous prime is 290268499. The next prime is 290268509. The reversal of 290268502 is 205862092.

290268502 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290268509) 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 as a sum of consecutive naturals, namely, 72567124 + ... + 72567127.

It is an arithmetic number, because the mean of its divisors is an integer number (108850689).

Almost surely, 2290268502 is an apocalyptic number.

290268502 is a deficient number, since it is larger than the sum of its proper divisors (145134254).

290268502 is a wasteful number, since it uses less digits than its factorization.

290268502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145134253.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 290268502 is about 17037.2680321699. The cubic root of 290268502 is about 662.1148126152.

The spelling of 290268502 in words is "two hundred ninety million, two hundred sixty-eight thousand, five hundred two".

Divisors: 1 2 145134251 290268502