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28342074 = 2337432969
BaseRepresentation
bin110110000011…
…1011100111010
31222022221000110
41230013130322
524223421244
62451245150
7462621645
oct154073472
958287013
1028342074
1114aa8902
1295a97b6
135b44477
143a9aa5c
15274c9b9
hex1b0773a

28342074 has 32 divisors (see below), whose sum is σ = 59590080. Its totient is φ = 8975232.

The previous prime is 28342073. The next prime is 28342087. The reversal of 28342074 is 47024382.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28342073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8062 + ... + 11030.

It is an arithmetic number, because the mean of its divisors is an integer number (1862190).

Almost surely, 228342074 is an apocalyptic number.

28342074 is an abundant number, since it is smaller than the sum of its proper divisors (31248006).

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

28342074 is a wasteful number, since it uses less digits than its factorization.

28342074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 28342074 is about 5323.7274535799. The cubic root of 28342074 is about 304.8904883200.

The spelling of 28342074 in words is "twenty-eight million, three hundred forty-two thousand, seventy-four".

Divisors: 1 2 3 6 37 43 74 86 111 129 222 258 1591 2969 3182 4773 5938 8907 9546 17814 109853 127667 219706 255334 329559 383001 659118 766002 4723679 9447358 14171037 28342074