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2218053 = 3739351
BaseRepresentation
bin1000011101100001000101
311011200121010
420131201011
51031434203
6115312433
724565425
oct10354105
94150533
102218053
111285502
128ab719
135c8776
1441a485
152dc303
hex21d845

2218053 has 4 divisors (see below), whose sum is σ = 2957408. Its totient is φ = 1478700.

The previous prime is 2218037. The next prime is 2218057. The reversal of 2218053 is 3508122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2218053 - 24 = 2218037 is a prime.

It is a super-2 number, since 2×22180532 = 9839518221618, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369673 + ... + 369678.

It is an arithmetic number, because the mean of its divisors is an integer number (739352).

22218053 is an apocalyptic number.

It is an amenable number.

2218053 is a deficient number, since it is larger than the sum of its proper divisors (739355).

2218053 is an equidigital number, since it uses as much as digits as its factorization.

2218053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739354.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2218053 is about 1489.3129288366. The cubic root of 2218053 is about 130.4139271825.

The spelling of 2218053 in words is "two million, two hundred eighteen thousand, fifty-three".

Divisors: 1 3 739351 2218053