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68814072 = 23324123311
BaseRepresentation
bin1000001101000…
…00010011111000
311210111010011100
410012200103320
5120104022242
610454531400
71463624055
oct406402370
9153433140
1068814072
1135931038
121b066b60
1311344ab2
1491d402c
15609454c
hex41a04f8

68814072 has 48 divisors (see below), whose sum is σ = 190925280. Its totient is φ = 22377600.

The previous prime is 68814047. The next prime is 68814077. The reversal of 68814072 is 27041886.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68814077) 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, 8704 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (3977610).

Almost surely, 268814072 is an apocalyptic number.

It is an amenable number.

68814072 is an abundant number, since it is smaller than the sum of its proper divisors (122111208).

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

68814072 is a wasteful number, since it uses less digits than its factorization.

68814072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23364 (or 23357 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 68814072 is about 8295.4247630848. The cubic root of 68814072 is about 409.7878577319.

The spelling of 68814072 in words is "sixty-eight million, eight hundred fourteen thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 41 72 82 123 164 246 328 369 492 738 984 1476 2952 23311 46622 69933 93244 139866 186488 209799 279732 419598 559464 839196 955751 1678392 1911502 2867253 3823004 5734506 7646008 8601759 11469012 17203518 22938024 34407036 68814072