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272490 = 23531293
BaseRepresentation
bin1000010100001101010
3111211210020
41002201222
532204430
65501310
72213301
oct1024152
9454706
10272490
111767a9
12111836
139704a
1471438
1555b10
hex4286a

272490 has 32 divisors (see below), whose sum is σ = 677376. Its totient is φ = 70080.

The previous prime is 272477. The next prime is 272507. The reversal of 272490 is 94272.

It is a self number, because there is not a number n which added to its sum of digits gives 272490.

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 15 ways as a sum of consecutive naturals, for example, 784 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (21168).

2272490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338688).

272490 is an abundant number, since it is smaller than the sum of its proper divisors (404886).

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

272490 is a wasteful number, since it uses less digits than its factorization.

272490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 272490 is about 522.0057470948. The cubic root of 272490 is about 64.8311197881.

The spelling of 272490 in words is "two hundred seventy-two thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 293 310 465 586 879 930 1465 1758 2930 4395 8790 9083 18166 27249 45415 54498 90830 136245 272490