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274890 = 235721117
BaseRepresentation
bin1000011000111001010
3111222002010
41003013022
532244030
65520350
72223300
oct1030712
9458063
10274890
11178590
121130b6
1398175
1472270
15566b0
hex431ca

274890 has 96 divisors (see below), whose sum is σ = 886464. Its totient is φ = 53760.

The previous prime is 274889. The next prime is 274909. The reversal of 274890 is 98472.

274890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16162 + ... + 16178.

It is an arithmetic number, because the mean of its divisors is an integer number (9234).

2274890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443232).

274890 is an abundant number, since it is smaller than the sum of its proper divisors (611574).

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

274890 is a wasteful number, since it uses less digits than its factorization.

274890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 274890 is about 524.2995327101. The cubic root of 274890 is about 65.0209005766.

The spelling of 274890 in words is "two hundred seventy-four thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 7 10 11 14 15 17 21 22 30 33 34 35 42 49 51 55 66 70 77 85 98 102 105 110 119 147 154 165 170 187 210 231 238 245 255 294 330 357 374 385 462 490 510 539 561 595 714 735 770 833 935 1078 1122 1155 1190 1309 1470 1617 1666 1785 1870 2310 2499 2618 2695 2805 3234 3570 3927 4165 4998 5390 5610 6545 7854 8085 8330 9163 12495 13090 16170 18326 19635 24990 27489 39270 45815 54978 91630 137445 274890