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28314120 = 2335235951
BaseRepresentation
bin110110000000…
…0101000001000
31222021111200010
41230000220020
524222022440
62450511520
7462444312
oct154005010
958244603
1028314120
1114a898aa
1295955a0
135b34823
143a907b2
152744580
hex1b00a08

28314120 has 32 divisors (see below), whose sum is σ = 84942720. Its totient is φ = 7550400.

The previous prime is 28314119. The next prime is 28314151. The reversal of 28314120 is 2141382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117856 + ... + 118095.

It is an arithmetic number, because the mean of its divisors is an integer number (2654460).

Almost surely, 228314120 is an apocalyptic number.

28314120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28314120 is an abundant number, since it is smaller than the sum of its proper divisors (56628600).

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

28314120 is a wasteful number, since it uses less digits than its factorization.

28314120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235965 (or 235961 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28314120 is about 5321.1013897501. The cubic root of 28314120 is about 304.7902167553.

The spelling of 28314120 in words is "twenty-eight million, three hundred fourteen thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 235951 471902 707853 943804 1179755 1415706 1887608 2359510 2831412 3539265 4719020 5662824 7078530 9438040 14157060 28314120