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270440290 = 2563142859
BaseRepresentation
bin10000000111101…
…001011101100010
3200211212210100001
4100013221131202
51023213042130
642500250214
76462463441
oct2007513542
9624783301
10270440290
1112972487a
12766a096a
134404b353
1427cbad58
1518b206ca
hex101e9762

270440290 has 16 divisors (see below), whose sum is σ = 487575360. Its totient is φ = 108002160.

The previous prime is 270440273. The next prime is 270440299. The reversal of 270440290 is 92044072.

It is not an unprimeable number, because it can be changed into a prime (270440299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15120 + ... + 27739.

It is an arithmetic number, because the mean of its divisors is an integer number (30473460).

Almost surely, 2270440290 is an apocalyptic number.

270440290 is a deficient number, since it is larger than the sum of its proper divisors (217135070).

270440290 is a wasteful number, since it uses less digits than its factorization.

270440290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43497.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 270440290 is about 16445.0688657725. The cubic root of 270440290 is about 646.6815406765.

The spelling of 270440290 in words is "two hundred seventy million, four hundred forty thousand, two hundred ninety".

Divisors: 1 2 5 10 631 1262 3155 6310 42859 85718 214295 428590 27044029 54088058 135220145 270440290