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22012153 = 211104323
BaseRepresentation
bin101001111111…
…0000011111001
31112102022222221
41103332003321
521113342103
62103444041
7355046242
oct123760371
945368887
1022012153
1111475069
127456621
134739257
142ccdcc9
151dec1bd
hex14fe0f9

22012153 has 4 divisors (see below), whose sum is σ = 22116688. Its totient is φ = 21907620.

The previous prime is 22012141. The next prime is 22012157. The reversal of 22012153 is 35121022.

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 a cyclic number.

It is not a de Polignac number, because 22012153 - 221 = 19915001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012157) 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, 51951 + ... + 52372.

It is an arithmetic number, because the mean of its divisors is an integer number (5529172).

Almost surely, 222012153 is an apocalyptic number.

It is an amenable number.

22012153 is a deficient number, since it is larger than the sum of its proper divisors (104535).

22012153 is a wasteful number, since it uses less digits than its factorization.

22012153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104534.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22012153 is about 4691.7110951123. The cubic root of 22012153 is about 280.2555193011.

Adding to 22012153 its reverse (35121022), we get a palindrome (57133175).

The spelling of 22012153 in words is "twenty-two million, twelve thousand, one hundred fifty-three".

Divisors: 1 211 104323 22012153