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23554228 = 225888557
BaseRepresentation
bin101100111011…
…0100010110100
31122022200022211
41121312202310
522012213403
62200503204
7404131135
oct131664264
948280284
1023554228
1112328705
127a7ab04
134b59119
1431b1c8c
15210406d
hex16768b4

23554228 has 6 divisors (see below), whose sum is σ = 41219906. Its totient is φ = 11777112.

The previous prime is 23554211. The next prime is 23554229. The reversal of 23554228 is 82245532.

It can be written as a sum of positive squares in only one way, i.e., 19465744 + 4088484 = 4412^2 + 2022^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23554228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23554229) 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 as a sum of consecutive naturals, namely, 2944275 + ... + 2944282.

Almost surely, 223554228 is an apocalyptic number.

It is an amenable number.

23554228 is a deficient number, since it is larger than the sum of its proper divisors (17665678).

23554228 is a wasteful number, since it uses less digits than its factorization.

23554228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888561 (or 5888559 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 23554228 is about 4853.2698255918. The cubic root of 23554228 is about 286.6528681538.

The spelling of 23554228 in words is "twenty-three million, five hundred fifty-four thousand, two hundred twenty-eight".

Divisors: 1 2 4 5888557 11777114 23554228