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68233272 = 23323711741
BaseRepresentation
bin1000001000100…
…10100000111000
311202101121110020
410010102200320
5114431431042
610434250440
71455654552
oct404224070
9152347406
1068233272
1135574738
121aa26a20
13111a0623
1490c24d2
155ecc3ec
hex4112838

68233272 has 64 divisors (see below), whose sum is σ = 180610560. Its totient is φ = 21436800.

The previous prime is 68233247. The next prime is 68233279. The reversal of 68233272 is 27233286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68233279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38322 + ... + 40062.

It is an arithmetic number, because the mean of its divisors is an integer number (2822040).

Almost surely, 268233272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68233272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90305280).

68233272 is an abundant number, since it is smaller than the sum of its proper divisors (112377288).

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

68233272 is a wasteful number, since it uses less digits than its factorization.

68233272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1840 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 68233272 is about 8260.3433342689. The cubic root of 68233272 is about 408.6317107609.

The spelling of 68233272 in words is "sixty-eight million, two hundred thirty-three thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 71 92 138 142 184 213 276 284 426 552 568 852 1633 1704 1741 3266 3482 4899 5223 6532 6964 9798 10446 13064 13928 19596 20892 39192 40043 41784 80086 120129 123611 160172 240258 247222 320344 370833 480516 494444 741666 961032 988888 1483332 2843053 2966664 5686106 8529159 11372212 17058318 22744424 34116636 68233272