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27401930 = 2516316811
BaseRepresentation
bin110100010000…
…1111011001010
31220120011101022
41220201323022
524003330210
62415152442
7451625003
oct150417312
956504338
1027401930
1114516526
129215722
1358a557a
1438d41aa
152614155
hex1a21eca

27401930 has 16 divisors (see below), whose sum is σ = 49629024. Its totient is φ = 10892880.

The previous prime is 27401917. The next prime is 27401939. The reversal of 27401930 is 3910472.

It is a self number, because there is not a number n which added to its sum of digits gives 27401930.

It is not an unprimeable number, because it can be changed into a prime (27401939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6776 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (3101814).

Almost surely, 227401930 is an apocalyptic number.

27401930 is a deficient number, since it is larger than the sum of its proper divisors (22227094).

27401930 is a wasteful number, since it uses less digits than its factorization.

27401930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16981.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 27401930 is about 5234.6852818484. The cubic root of 27401930 is about 301.4813033921.

The spelling of 27401930 in words is "twenty-seven million, four hundred one thousand, nine hundred thirty".

Divisors: 1 2 5 10 163 326 815 1630 16811 33622 84055 168110 2740193 5480386 13700965 27401930