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68384732 = 22133735543
BaseRepresentation
bin1000001001101…
…11011111011100
311202200022012212
410010313133130
5120001302412
610441415552
71460155253
oct404673734
9152608185
1068384732
1135668509
121aa9a5b8
1311224550
14912179a
15600c222
hex41377dc

68384732 has 24 divisors (see below), whose sum is σ = 132365856. Its totient is φ = 30708288.

The previous prime is 68384731. The next prime is 68384737. The reversal of 68384732 is 23748386.

It is a self number, because there is not a number n which added to its sum of digits gives 68384732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68384731) 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, 15848 + ... + 19695.

It is an arithmetic number, because the mean of its divisors is an integer number (5515244).

Almost surely, 268384732 is an apocalyptic number.

It is an amenable number.

68384732 is a deficient number, since it is larger than the sum of its proper divisors (63981124).

68384732 is a wasteful number, since it uses less digits than its factorization.

68384732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35597 (or 35595 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 68384732 is about 8269.5061521230. The cubic root of 68384732 is about 408.9338391278.

The spelling of 68384732 in words is "sixty-eight million, three hundred eighty-four thousand, seven hundred thirty-two".

Divisors: 1 2 4 13 26 37 52 74 148 481 962 1924 35543 71086 142172 462059 924118 1315091 1848236 2630182 5260364 17096183 34192366 68384732