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71268906 = 23412811031
BaseRepresentation
bin1000011111101…
…11101000101010
311222002211120010
410033313220222
5121221101111
611023312350
71523530032
oct417675052
9158084503
1071268906
1137258425
121ba4b6b6
13119c4267
1496728c2
1563cbaa6
hex43f7a2a

71268906 has 32 divisors (see below), whose sum is σ = 146676096. Its totient is φ = 23072000.

The previous prime is 71268889. The next prime is 71268937. The reversal of 71268906 is 60986217.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68611 + ... + 69641.

It is an arithmetic number, because the mean of its divisors is an integer number (4583628).

Almost surely, 271268906 is an apocalyptic number.

71268906 is an abundant number, since it is smaller than the sum of its proper divisors (75407190).

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

71268906 is a wasteful number, since it uses less digits than its factorization.

71268906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

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

The square root of 71268906 is about 8442.0913285749. The cubic root of 71268906 is about 414.6038819564.

The spelling of 71268906 in words is "seventy-one million, two hundred sixty-eight thousand, nine hundred six".

Divisors: 1 2 3 6 41 82 123 246 281 562 843 1031 1686 2062 3093 6186 11521 23042 34563 42271 69126 84542 126813 253626 289711 579422 869133 1738266 11878151 23756302 35634453 71268906