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69828399368 = 23713177377291
BaseRepresentation
bin100000100001000011…
…0001101000100001000
320200020110110020001122
41001002012031010020
52121002032234433
652025000534412
75021261413160
oct1010206150410
9220213406048
1069828399368
1127683346a72
1211649481408
13677aa24910
143545d075a0
151c3a516198
hex104218d108

69828399368 has 128 divisors (see below), whose sum is σ = 172960945920. Its totient is φ = 25642967040.

The previous prime is 69828399359. The next prime is 69828399397. The reversal of 69828399368 is 86399382896.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 864803 + ... + 942093.

It is an arithmetic number, because the mean of its divisors is an integer number (1351257390).

Almost surely, 269828399368 is an apocalyptic number.

69828399368 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69828399368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86480472960).

69828399368 is an abundant number, since it is smaller than the sum of its proper divisors (103132546552).

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

69828399368 is a wasteful number, since it uses less digits than its factorization.

69828399368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77407 (or 77403 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 71.

The spelling of 69828399368 in words is "sixty-nine billion, eight hundred twenty-eight million, three hundred ninety-nine thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 13 14 17 26 28 34 52 56 68 73 91 104 119 136 146 182 221 238 292 364 442 476 511 584 728 884 949 952 1022 1241 1547 1768 1898 2044 2482 3094 3796 4088 4964 6188 6643 7592 8687 9928 12376 13286 16133 17374 26572 32266 34748 53144 64532 69496 77291 112931 129064 154582 225862 309164 451724 541037 618328 903448 1004783 1082074 1313947 2009566 2164148 2627894 4019132 4328296 5255788 5642243 7033481 8038264 9197629 10511576 11284486 14066962 17081311 18395258 22568972 28133924 34162622 36790516 39495701 45137944 56267848 68325244 73349159 73581032 78991402 95918131 119569177 136650488 146698318 157982804 191836262 239138354 293396636 315965608 383672524 478276708 513444113 586793272 671426917 767345048 956553416 1026888226 1246935703 1342853834 2053776452 2493871406 2685707668 4107552904 4987742812 5371415336 8728549921 9975485624 17457099842 34914199684 69828399368