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3072890 = 25307289
BaseRepresentation
bin1011101110001101111010
312210010012202
423232031322
51241313030
6145510202
735055602
oct13561572
95703182
103072890
111809787
121042362
138378a2
1459dc02
1540a745
hex2ee37a

3072890 has 8 divisors (see below), whose sum is σ = 5531220. Its totient is φ = 1229152.

The previous prime is 3072871. The next prime is 3072911. The reversal of 3072890 is 982703.

It can be written as a sum of positive squares in 2 ways, for example, as 3066001 + 6889 = 1751^2 + 83^2 .

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

It is an Ulam number.

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, 153635 + ... + 153654.

Almost surely, 23072890 is an apocalyptic number.

3072890 is a deficient number, since it is larger than the sum of its proper divisors (2458330).

3072890 is a wasteful number, since it uses less digits than its factorization.

3072890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307296.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 3072890 is about 1752.9660578574. The cubic root of 3072890 is about 145.3836845895.

The spelling of 3072890 in words is "three million, seventy-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 307289 614578 1536445 3072890