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28414080 = 273254933
BaseRepresentation
bin110110001100…
…1000010000000
31222110120210100
41230121002000
524233222310
62453002400
7463341612
oct154310200
958416710
1028414080
1115047a12
129623400
135b6b186
143ab8db2
152763ec0
hex1b19080

28414080 has 96 divisors (see below), whose sum is σ = 98137260. Its totient is φ = 7575552.

The previous prime is 28414069. The next prime is 28414081. The reversal of 28414080 is 8041482.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 788544 = 5256^2 + 888^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (28414081) 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, 3294 + ... + 8226.

Almost surely, 228414080 is an apocalyptic number.

28414080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28414080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49068630).

28414080 is an abundant number, since it is smaller than the sum of its proper divisors (69723180).

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

28414080 is a wasteful number, since it uses less digits than its factorization.

28414080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958 (or 4943 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 28414080 is about 5330.4859065567. The cubic root of 28414080 is about 305.1484720112.

The spelling of 28414080 in words is "twenty-eight million, four hundred fourteen thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 4933 5760 9866 14799 19732 24665 29598 39464 44397 49330 59196 73995 78928 88794 98660 118392 147990 157856 177588 197320 221985 236784 295980 315712 355176 394640 443970 473568 591960 631424 710352 789280 887940 947136 1183920 1420704 1578560 1775880 1894272 2367840 2841408 3157120 3551760 4735680 5682816 7103520 9471360 14207040 28414080