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19731068 = 227704681
BaseRepresentation
bin100101101000…
…1001001111100
31101010102221022
41023101021330
520022343233
61542523312
7326465660
oct113211174
941112838
1019731068
1110157275
126736538
13411abb6
1428988a0
151aeb398
hex12d127c

19731068 has 12 divisors (see below), whose sum is σ = 39462192. Its totient is φ = 8456160.

The previous prime is 19731059. The next prime is 19731073. The reversal of 19731068 is 86013791.

19731068 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352313 + ... + 352368.

It is an arithmetic number, because the mean of its divisors is an integer number (3288516).

Almost surely, 219731068 is an apocalyptic number.

It is an amenable number.

19731068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19731068 is a wasteful number, since it uses less digits than its factorization.

19731068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704692 (or 704690 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 19731068 is about 4441.9666815500. The cubic root of 19731068 is about 270.2196109919.

The spelling of 19731068 in words is "nineteen million, seven hundred thirty-one thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 704681 1409362 2818724 4932767 9865534 19731068