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17428380 = 2235290473
BaseRepresentation
bin100001001111…
…0111110011100
31012210110020120
41002132332130
513430202010
61421314540
7301065414
oct102367634
935713216
1017428380
119924222
125a05a50
1337c2a68
142459644
1517e3e70
hex109ef9c

17428380 has 24 divisors (see below), whose sum is σ = 48799632. Its totient is φ = 4647552.

The previous prime is 17428363. The next prime is 17428387. The reversal of 17428380 is 8382471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17428387) 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, 145177 + ... + 145296.

It is an arithmetic number, because the mean of its divisors is an integer number (2033318).

Almost surely, 217428380 is an apocalyptic number.

17428380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17428380 is an abundant number, since it is smaller than the sum of its proper divisors (31371252).

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

17428380 is a wasteful number, since it uses less digits than its factorization.

17428380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290485 (or 290483 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 17428380 is about 4174.7311290669. The cubic root of 17428380 is about 259.2700432753.

The spelling of 17428380 in words is "seventeen million, four hundred twenty-eight thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 290473 580946 871419 1161892 1452365 1742838 2904730 3485676 4357095 5809460 8714190 17428380