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28514946 = 232925651
BaseRepresentation
bin110110011000…
…1101010000010
31222122201011010
41230301222002
524244434241
62455101350
7464241645
oct154615202
958581133
1028514946
1115106779
129671856
135ba5065
143b03a5c
152783d16
hex1b31a82

28514946 has 24 divisors (see below), whose sum is σ = 59074704. Its totient is φ = 9175600.

The previous prime is 28514939. The next prime is 28514951. The reversal of 28514946 is 64941582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2221 + ... + 7871.

It is an arithmetic number, because the mean of its divisors is an integer number (2461446).

Almost surely, 228514946 is an apocalyptic number.

28514946 is an abundant number, since it is smaller than the sum of its proper divisors (30559758).

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

28514946 is a wasteful number, since it uses less digits than its factorization.

28514946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714 (or 5685 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 28514946 is about 5339.9387636938. The cubic root of 28514946 is about 305.5091236897.

The spelling of 28514946 in words is "twenty-eight million, five hundred fourteen thousand, nine hundred forty-six".

Divisors: 1 2 3 6 29 58 87 174 841 1682 2523 5046 5651 11302 16953 33906 163879 327758 491637 983274 4752491 9504982 14257473 28514946