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80310852840 = 23351275779133
BaseRepresentation
bin100101011001011100…
…1100101110011101000
321200022000001000221010
41022302321211303220
52303434034242330
6100521100143520
75542114662051
oct1126271456350
9250260030833
1080310852840
1131072423459
1213693b37ba0
13775b6626ca
143c5c175728
1521509233b0
hex12b2e65ce8

80310852840 has 128 divisors (see below), whose sum is σ = 243277148160. Its totient is φ = 21208449024.

The previous prime is 80310852833. The next prime is 80310852877. The reversal of 80310852840 is 4825801308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8788914 + ... + 8798046.

It is an arithmetic number, because the mean of its divisors is an integer number (1900602720).

Almost surely, 280310852840 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 80310852840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121638574080).

80310852840 is an abundant number, since it is smaller than the sum of its proper divisors (162966295320).

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

80310852840 is a wasteful number, since it uses less digits than its factorization.

80310852840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9851 (or 9847 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 80310852840 in words is "eighty billion, three hundred ten million, eight hundred fifty-two thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 127 254 381 508 577 635 762 1016 1154 1270 1524 1731 1905 2308 2540 2885 3048 3462 3810 4616 5080 5770 6924 7620 8655 9133 11540 13848 15240 17310 18266 23080 27399 34620 36532 45665 54798 69240 73064 73279 91330 109596 136995 146558 182660 219192 219837 273990 293116 365320 366395 439674 547980 586232 732790 879348 1095960 1099185 1159891 1465580 1758696 2198370 2319782 2931160 3479673 4396740 4639564 5269741 5799455 6959346 8793480 9279128 10539482 11598910 13918692 15809223 17398365 21078964 23197820 26348705 27837384 31618446 34796730 42157928 46395640 52697410 63236892 69593460 79046115 105394820 126473784 139186920 158092230 210789640 316184460 632368920 669257107 1338514214 2007771321 2677028428 3346285535 4015542642 5354056856 6692571070 8031085284 10038856605 13385142140 16062170568 20077713210 26770284280 40155426420 80310852840