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86821468214 = 21365313193877
BaseRepresentation
bin101000011011011110…
…1100111100000110110
322022002201220120012212
41100312331213200312
52410302243440324
6103515113213422
76162342206015
oct1206675474066
9268081816185
1086821468214
1133903501118
12149b0401272
13825845c240
1442b8b00a7c
1523d22be70e
hex1436f67836

86821468214 has 32 divisors (see below), whose sum is σ = 140607593280. Its totient is φ = 39969436032.

The previous prime is 86821468211. The next prime is 86821468241. The reversal of 86821468214 is 41286412868.

It is a super-2 number, since 2×868214682142 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86821468211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22392044 + ... + 22395920.

It is an arithmetic number, because the mean of its divisors is an integer number (4393987290).

Almost surely, 286821468214 is an apocalyptic number.

86821468214 is a deficient number, since it is larger than the sum of its proper divisors (53786125066).

86821468214 is a wasteful number, since it uses less digits than its factorization.

86821468214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864.

The product of its digits is 1179648, while the sum is 50.

The spelling of 86821468214 in words is "eighty-six billion, eight hundred twenty-one million, four hundred sixty-eight thousand, two hundred fourteen".

Divisors: 1 2 13 26 653 1306 1319 2638 3877 7754 8489 16978 17147 34294 50401 100802 861307 1722614 2531681 5063362 5113763 10227526 11196991 22393982 32911853 65823706 66478919 132957838 3339287239 6678574478 43410734107 86821468214