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27228950 = 252777797
BaseRepresentation
bin110011111011…
…1101100010110
31220020101002122
41213313230112
523432311300
62411335542
7450304460
oct147675426
956211078
1027228950
1114408571
1291515b2
135844908
14388b130
1525ccc85
hex19f7b16

27228950 has 24 divisors (see below), whose sum is σ = 57881712. Its totient is φ = 9335520.

The previous prime is 27228947. The next prime is 27228953. The reversal of 27228950 is 5982272.

It is an interprime number because it is at equal distance from previous prime (27228947) and next prime (27228953).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27228950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38549 + ... + 39248.

It is an arithmetic number, because the mean of its divisors is an integer number (2411738).

Almost surely, 227228950 is an apocalyptic number.

27228950 is an abundant number, since it is smaller than the sum of its proper divisors (30652762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27228950 is a wasteful number, since it uses less digits than its factorization.

27228950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77816 (or 77811 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 27228950 is about 5218.1366406027. The cubic root of 27228950 is about 300.8455773867.

The spelling of 27228950 in words is "twenty-seven million, two hundred twenty-eight thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 77797 155594 388985 544579 777970 1089158 1944925 2722895 3889850 5445790 13614475 27228950