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80212212102 = 23118340935801
BaseRepresentation
bin100101010110100000…
…1010011100110000110
321200001010102120021110
41022231001103212012
52303233311241402
6100503214025450
75536506360531
oct1125501234606
9250033376243
1080212212102
1131021780190
1213666aa8286
1377440a67c9
143c4d019a18
152146e3b56c
hex12ad053986

80212212102 has 64 divisors (see below), whose sum is σ = 177555006720. Its totient is φ = 23954496000.

The previous prime is 80212212079. The next prime is 80212212107. The reversal of 80212212102 is 20121221208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80212212107) 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, 2222602 + ... + 2258402.

It is an arithmetic number, because the mean of its divisors is an integer number (2774296980).

Almost surely, 280212212102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80212212102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88777503360).

80212212102 is an abundant number, since it is smaller than the sum of its proper divisors (97342794618).

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

80212212102 is a wasteful number, since it uses less digits than its factorization.

80212212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36309.

The product of its (nonzero) digits is 256, while the sum is 21.

The spelling of 80212212102 in words is "eighty billion, two hundred twelve million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 3 6 11 22 33 66 83 166 249 409 498 818 913 1227 1826 2454 2739 4499 5478 8998 13497 26994 33947 35801 67894 71602 101841 107403 203682 214806 373417 393811 746834 787622 1120251 1181433 2240502 2362866 2971483 5942966 8914449 14642609 17828898 29285218 32686313 43927827 65372626 87855654 98058939 161068699 196117878 322137398 483206097 966412194 1215336547 2430673094 3646009641 7292019282 13368702017 26737404034 40106106051 80212212102