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17214140 = 2254311997
BaseRepresentation
bin100000110101…
…0101010111100
31012101120100202
41001222222330
513401323030
61412543032
7266213666
oct101525274
935346322
1017214140
119798269
125921a78
1337493a8
142401536
1517a0745
hex106aabc

17214140 has 24 divisors (see below), whose sum is σ = 36251712. Its totient is φ = 6866240.

The previous prime is 17214103. The next prime is 17214157. The reversal of 17214140 is 4141271.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (1510488).

Almost surely, 217214140 is an apocalyptic number.

17214140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17214140 is an abundant number, since it is smaller than the sum of its proper divisors (19037572).

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

17214140 is a wasteful number, since it uses less digits than its factorization.

17214140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 17214140 is about 4148.9926488245. The cubic root of 17214140 is about 258.2032930897.

The spelling of 17214140 in words is "seventeen million, two hundred fourteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 431 862 1724 1997 2155 3994 4310 7988 8620 9985 19970 39940 860707 1721414 3442828 4303535 8607070 17214140