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20968176 = 2434310159
BaseRepresentation
bin100111111111…
…1001011110000
31110110021221010
41033333023300
520331440201
62025230520
7343140465
oct117771360
943407833
1020968176
1110921779
127032440
134462008
142adb66c
151c92bd6
hex13ff2f0

20968176 has 40 divisors (see below), whose sum is σ = 55432960. Its totient is φ = 6826176.

The previous prime is 20968141. The next prime is 20968177. The reversal of 20968176 is 67186902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20968177) 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, 3016 + ... + 7143.

It is an arithmetic number, because the mean of its divisors is an integer number (1385824).

Almost surely, 220968176 is an apocalyptic number.

It is an amenable number.

20968176 is an abundant number, since it is smaller than the sum of its proper divisors (34464784).

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

20968176 is a wasteful number, since it uses less digits than its factorization.

20968176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10213 (or 10207 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 20968176 is about 4579.1020953894. The cubic root of 20968176 is about 275.7529820954.

The spelling of 20968176 in words is "twenty million, nine hundred sixty-eight thousand, one hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 516 688 1032 2064 10159 20318 30477 40636 60954 81272 121908 162544 243816 436837 487632 873674 1310511 1747348 2621022 3494696 5242044 6989392 10484088 20968176