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27401430 = 2357130483
BaseRepresentation
bin110100010000…
…1110011010110
31220120010200210
41220201303112
524003321210
62415150250
7451623360
oct150416326
956503623
1027401430
1114516111
129215386
1358a5284
1438d3d30
152613e20
hex1a21cd6

27401430 has 32 divisors (see below), whose sum is σ = 75158784. Its totient is φ = 6263136.

The previous prime is 27401411. The next prime is 27401447. The reversal of 27401430 is 3410472.

27401430 = T901 + T902 + ... + T963.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 27401397 and 27401406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65032 + ... + 65451.

It is an arithmetic number, because the mean of its divisors is an integer number (2348712).

Almost surely, 227401430 is an apocalyptic number.

27401430 is an abundant number, since it is smaller than the sum of its proper divisors (47757354).

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

27401430 is a wasteful number, since it uses less digits than its factorization.

27401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130500.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 27401430 is about 5234.6375232675. The cubic root of 27401430 is about 301.4794696822.

The spelling of 27401430 in words is "twenty-seven million, four hundred one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 130483 260966 391449 652415 782898 913381 1304830 1826762 1957245 2740143 3914490 4566905 5480286 9133810 13700715 27401430