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2265047 = 19971229
BaseRepresentation
bin1000101000111111010111
311021002001122
420220333113
51034440142
6120314155
725152431
oct10507727
94232048
102265047
111307844
1291295b
13613c85
1442d651
152eb1d2
hex228fd7

2265047 has 8 divisors (see below), whose sum is σ = 2410800. Its totient is φ = 2121984.

The previous prime is 2265019. The next prime is 2265049. The reversal of 2265047 is 7405622.

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

It is a cyclic number.

It is not a de Polignac number, because 2265047 - 214 = 2248663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265049) 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 in 7 ways as a sum of consecutive naturals, for example, 1229 + ... + 2457.

It is an arithmetic number, because the mean of its divisors is an integer number (301350).

22265047 is an apocalyptic number.

2265047 is the 1229-th pentagonal number.

2265047 is a deficient number, since it is larger than the sum of its proper divisors (145753).

2265047 is a wasteful number, since it uses less digits than its factorization.

2265047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2265047 is about 1505.0073089524. The cubic root of 2265047 is about 131.3285268553.

The spelling of 2265047 in words is "two million, two hundred sixty-five thousand, forty-seven".

Divisors: 1 19 97 1229 1843 23351 119213 2265047