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86700381838 = 276714192237
BaseRepresentation
bin101000010111110111…
…1101101011010001110
322021210022001201221021
41100233233231122032
52410030244204323
6103455110024354
76156342041350
oct1205757553216
9267708051837
1086700381838
1133851118134
12149779480ba
1382393449b5
1442a69c10d0
1523c685205d
hex142fbed68e

86700381838 has 16 divisors (see below), whose sum is σ = 148633051104. Its totient is φ = 37156350240.

The previous prime is 86700381827. The next prime is 86700381839. The reversal of 86700381838 is 83818300768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86700381839) 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, 893856 + ... + 986092.

It is an arithmetic number, because the mean of its divisors is an integer number (9289565694).

Almost surely, 286700381838 is an apocalyptic number.

86700381838 is a deficient number, since it is larger than the sum of its proper divisors (61932669266).

86700381838 is a wasteful number, since it uses less digits than its factorization.

86700381838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159387.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 86700381838 in words is "eighty-six billion, seven hundred million, three hundred eighty-one thousand, eight hundred thirty-eight".

Divisors: 1 2 7 14 67141 92237 134282 184474 469987 645659 939974 1291318 6192884417 12385768834 43350190919 86700381838