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68944122 = 23413191723
BaseRepresentation
bin1000001110000…
…00000011111010
311210201201120000
410013000003322
5120122202442
610501413430
71465005162
oct407000372
9153651500
1068944122
1135a0a815
121b10a276
131138c050
1492295a2
1560bcd4c
hex41c00fa

68944122 has 80 divisors (see below), whose sum is σ = 175227360. Its totient is φ = 20085408.

The previous prime is 68944097. The next prime is 68944123. The reversal of 68944122 is 22144986.

It is not an unprimeable number, because it can be changed into a prime (68944123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39153 + ... + 40875.

It is an arithmetic number, because the mean of its divisors is an integer number (2190342).

Almost surely, 268944122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68944122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87613680).

68944122 is an abundant number, since it is smaller than the sum of its proper divisors (106283238).

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

68944122 is a wasteful number, since it uses less digits than its factorization.

68944122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1760 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 68944122 is about 8303.2597213384. The cubic root of 68944122 is about 410.0458445663.

The spelling of 68944122 in words is "sixty-eight million, nine hundred forty-four thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 13 18 19 26 27 38 39 54 57 78 81 114 117 162 171 234 247 342 351 494 513 702 741 1026 1053 1482 1539 1723 2106 2223 3078 3446 4446 5169 6669 10338 13338 15507 20007 22399 31014 32737 40014 44798 46521 65474 67197 93042 98211 134394 139563 196422 201591 279126 294633 403182 425581 589266 604773 851162 883899 1209546 1276743 1767798 1814319 2553486 2651697 3628638 3830229 5303394 7660458 11490687 22981374 34472061 68944122