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68288502360 = 233513231903247
BaseRepresentation
bin111111100110010011…
…111101101001011000
320112021010212100111010
4333212103331221120
52104323324033420
651212111333520
74635152456421
oct774623755130
9215233770433
1068288502360
1126a63096611
12112998212a0
1365939a3960
14343b5ba648
151b9a23a4e0
hexfe64fda58

68288502360 has 128 divisors (see below), whose sum is σ = 230216878080. Its totient is φ = 16078622208.

The previous prime is 68288502349. The next prime is 68288502367. The reversal of 68288502360 is 6320588286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68288502367) 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, 915744 + ... + 987503.

It is an arithmetic number, because the mean of its divisors is an integer number (1798569360).

Almost surely, 268288502360 is an apocalyptic number.

68288502360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68288502360 is an abundant number, since it is smaller than the sum of its proper divisors (161928375720).

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

68288502360 is a wasteful number, since it uses less digits than its factorization.

68288502360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903297 (or 1903293 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 68288502360 in words is "sixty-eight billion, two hundred eighty-eight million, five hundred two thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 23 24 26 30 39 40 46 52 60 65 69 78 92 104 115 120 130 138 156 184 195 230 260 276 299 312 345 390 460 520 552 598 690 780 897 920 1196 1380 1495 1560 1794 2392 2760 2990 3588 4485 5980 7176 8970 11960 17940 35880 1903247 3806494 5709741 7612988 9516235 11419482 15225976 19032470 22838964 24742211 28548705 38064940 43774681 45677928 49484422 57097410 74226633 76129880 87549362 98968844 114194820 123711055 131324043 148453266 175098724 197937688 218873405 228389640 247422110 262648086 296906532 350197448 371133165 437746810 494844220 525296172 569070853 593813064 656620215 742266330 875493620 989688440 1050592344 1138141706 1313240430 1484532660 1707212559 1750987240 2276283412 2626480860 2845354265 2969065320 3414425118 4552566824 5252961720 5690708530 6828850236 8536062795 11381417060 13657700472 17072125590 22762834120 34144251180 68288502360