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68450448 = 24311129641
BaseRepresentation
bin1000001010001…
…11100010010000
311202210122100210
410011013202100
5120010403243
610443044120
71460550663
oct405074220
9152718323
1068450448
1135702920
121ab10640
1311248431
14913b6da
156021933
hex4147890

68450448 has 40 divisors (see below), whose sum is σ = 192907296. Its totient is φ = 20742400.

The previous prime is 68450441. The next prime is 68450491. The reversal of 68450448 is 84405486.

It is not an unprimeable number, because it can be changed into a prime (68450441) 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, 64293 + ... + 65348.

Almost surely, 268450448 is an apocalyptic number.

It is an amenable number.

68450448 is an abundant number, since it is smaller than the sum of its proper divisors (124456848).

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

68450448 is a wasteful number, since it uses less digits than its factorization.

68450448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129663 (or 129657 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 68450448 is about 8273.4785912577. The cubic root of 68450448 is about 409.0647888867.

The spelling of 68450448 in words is "sixty-eight million, four hundred fifty thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 129641 259282 388923 518564 777846 1037128 1426051 1555692 2074256 2852102 3111384 4278153 5704204 6222768 8556306 11408408 17112612 22816816 34225224 68450448