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68468472 = 23324720233
BaseRepresentation
bin1000001010010…
…11111011111000
311202211120002100
410011023323320
5120011442342
610443303400
71460654352
oct405137370
9152746070
1068468472
1135715416
121ab1ab60
13112536b7
1491440d2
156026e4c
hex414bef8

68468472 has 48 divisors (see below), whose sum is σ = 189390240. Its totient is φ = 22336128.

The previous prime is 68468471. The next prime is 68468479. The reversal of 68468472 is 27486486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68468471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6733 + ... + 13500.

It is an arithmetic number, because the mean of its divisors is an integer number (3945630).

Almost surely, 268468472 is an apocalyptic number.

It is an amenable number.

68468472 is an abundant number, since it is smaller than the sum of its proper divisors (120921768).

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

68468472 is a wasteful number, since it uses less digits than its factorization.

68468472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20292 (or 20285 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 68468472 is about 8274.5677832742. The cubic root of 68468472 is about 409.1006899749.

The spelling of 68468472 in words is "sixty-eight million, four hundred sixty-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 47 72 94 141 188 282 376 423 564 846 1128 1692 3384 20233 40466 60699 80932 121398 161864 182097 242796 364194 485592 728388 950951 1456776 1901902 2852853 3803804 5705706 7607608 8558559 11411412 17117118 22822824 34234236 68468472