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68726504 = 23711315961
BaseRepresentation
bin1000001100010…
…10111011101000
311210022200001002
410012022323220
5120043222004
610453014132
71463110550
oct406127350
9153280032
1068726504
1135881270
121b024348
1311313c92
1491b0160
15607861e
hex418aee8

68726504 has 128 divisors (see below), whose sum is σ = 171417600. Its totient is φ = 25056000.

The previous prime is 68726503. The next prime is 68726519. The reversal of 68726504 is 40562786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68726503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1126634 + ... + 1126694.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 268726504 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 68726504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85708800).

68726504 is an abundant number, since it is smaller than the sum of its proper divisors (102691096).

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

68726504 is a wasteful number, since it uses less digits than its factorization.

68726504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 68726504 is about 8290.1449927007. The cubic root of 68726504 is about 409.6139614433.

The spelling of 68726504 in words is "sixty-eight million, seven hundred twenty-six thousand, five hundred four".

Divisors: 1 2 4 7 8 11 14 22 28 31 44 56 59 61 62 77 88 118 122 124 154 217 236 244 248 308 341 413 427 434 472 488 616 649 671 682 826 854 868 1298 1342 1364 1652 1708 1736 1829 1891 2387 2596 2684 2728 3304 3416 3599 3658 3782 4543 4697 4774 5192 5368 7198 7316 7564 9086 9394 9548 12803 13237 14396 14632 15128 18172 18788 19096 20119 20801 25193 25606 26474 28792 36344 37576 39589 40238 41602 50386 51212 52948 79178 80476 83204 100772 102424 105896 111569 140833 145607 158356 160952 166408 201544 223138 277123 281666 291214 316712 446276 554246 563332 582428 780983 892552 1108492 1126664 1164856 1227259 1561966 2216984 2454518 3123932 4909036 6247864 8590813 9818072 17181626 34363252 68726504