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260630290 = 2526063029
BaseRepresentation
bin11111000100011…
…10011100010010
3200011102101112201
433202032130102
51013210132130
641510113414
76313215034
oct1742163422
9604371481
10260630290
11124134438
127334b86a
1341cc510b
1426885c54
1517d33bca
hexf88e712

260630290 has 8 divisors (see below), whose sum is σ = 469134540. Its totient is φ = 104252112.

The previous prime is 260630269. The next prime is 260630303. The reversal of 260630290 is 92036062.

260630290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 254817369 + 5812921 = 15963^2 + 2411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 13031505 + ... + 13031524.

Almost surely, 2260630290 is an apocalyptic number.

260630290 is a deficient number, since it is larger than the sum of its proper divisors (208504250).

260630290 is a wasteful number, since it uses less digits than its factorization.

260630290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26063036.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 260630290 is about 16144.0481292642. The cubic root of 260630290 is about 638.7657609504.

It can be divided in two parts, 2606 and 30290, that added together give a triangular number (32896 = T256).

The spelling of 260630290 in words is "two hundred sixty million, six hundred thirty thousand, two hundred ninety".

Divisors: 1 2 5 10 26063029 52126058 130315145 260630290