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86321201971 = 1720507247609
BaseRepresentation
bin101000001100100100…
…1010000001100110011
322020210212120101221111
41100121021100030303
52403241211430341
6103353322534151
76144056052604
oct1203111201463
9266725511844
1086321201971
1133677082744
1214890967357
1381a8912c04
14426c4b9dab
1523a3402681
hex1419250333

86321201971 has 8 divisors (see below), whose sum is σ = 91403745840. Its totient is φ = 81239194368.

The previous prime is 86321201957. The next prime is 86321202007. The reversal of 86321201971 is 17910212368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86321201971 - 29 = 86321201459 is a prime.

It is a super-3 number, since 3×863212019713 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86321201171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224815 + ... + 472423.

It is an arithmetic number, because the mean of its divisors is an integer number (11425468230).

Almost surely, 286321201971 is an apocalyptic number.

86321201971 is a deficient number, since it is larger than the sum of its proper divisors (5082543869).

86321201971 is a wasteful number, since it uses less digits than its factorization.

86321201971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268133.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 86321201971 in words is "eighty-six billion, three hundred twenty-one million, two hundred one thousand, nine hundred seventy-one".

Divisors: 1 17 20507 247609 348619 4209353 5077717763 86321201971