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19968006 = 2317319237
BaseRepresentation
bin100110000101…
…1000000000110
31101120110221210
41030023000012
520102434011
61551552250
7331503522
oct114130006
941513853
1019968006
11102a9293
12682b686
1341a19b6
14291ad82
151b466a6
hex130b006

19968006 has 16 divisors (see below), whose sum is σ = 40168944. Its totient is φ = 6617184.

The previous prime is 19968001. The next prime is 19968007. The reversal of 19968006 is 60086991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19968001) 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, 8581 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (2510559).

Almost surely, 219968006 is an apocalyptic number.

19968006 is an abundant number, since it is smaller than the sum of its proper divisors (20200938).

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

19968006 is a wasteful number, since it uses less digits than its factorization.

19968006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 19968006 is about 4468.5574853637. The cubic root of 19968006 is about 271.2969426143.

The spelling of 19968006 in words is "nineteen million, nine hundred sixty-eight thousand, six".

Divisors: 1 2 3 6 173 346 519 1038 19237 38474 57711 115422 3328001 6656002 9984003 19968006