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17142280 = 235428557
BaseRepresentation
bin100000101100…
…1001000001000
31012020220210021
41001121020020
513342023110
61411230224
7265464331
oct101311010
935226707
1017142280
119749281
1258a8374
13372277c
1423c3288
1517892da
hex1059208

17142280 has 16 divisors (see below), whose sum is σ = 38570220. Its totient is φ = 6856896.

The previous prime is 17142271. The next prime is 17142319. The reversal of 17142280 is 8224171.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15856324 + 1285956 = 3982^2 + 1134^2 .

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 3 ways as a sum of consecutive naturals, for example, 214239 + ... + 214318.

Almost surely, 217142280 is an apocalyptic number.

17142280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17142280 is an abundant number, since it is smaller than the sum of its proper divisors (21427940).

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

17142280 is a wasteful number, since it uses less digits than its factorization.

17142280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428568 (or 428564 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 17142280 is about 4140.3236588460. The cubic root of 17142280 is about 257.8435042358.

The spelling of 17142280 in words is "seventeen million, one hundred forty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 428557 857114 1714228 2142785 3428456 4285570 8571140 17142280