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22148653 = 137269601
BaseRepresentation
bin101010001111…
…1011000101101
31112200021020111
41110133120231
521132224103
62110420021
7356155222
oct124373055
945607214
1022148653
111155867a
127501611
134786417
142d27949
151e2786d
hex151f62d

22148653 has 8 divisors (see below), whose sum is σ = 22430520. Its totient is φ = 21868800.

The previous prime is 22148641. The next prime is 22148657. The reversal of 22148653 is 35684122.

It can be written as a sum of positive squares in 4 ways, for example, as 2762244 + 19386409 = 1662^2 + 4403^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22148653 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 (22148657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36553 + ... + 37153.

It is an arithmetic number, because the mean of its divisors is an integer number (2803815).

Almost surely, 222148653 is an apocalyptic number.

It is an amenable number.

22148653 is a deficient number, since it is larger than the sum of its proper divisors (281867).

22148653 is a wasteful number, since it uses less digits than its factorization.

22148653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its digits is 11520, while the sum is 31.

The square root of 22148653 is about 4706.2355444665. The cubic root of 22148653 is about 280.8336253337.

It can be divided in two parts, 22148 and 653, that added together give a square (22801 = 1512).

The spelling of 22148653 in words is "twenty-two million, one hundred forty-eight thousand, six hundred fifty-three".

Divisors: 1 137 269 601 36853 82337 161669 22148653