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86271420 = 22353738861
BaseRepresentation
bin1010010010001…
…10010110111100
320000100001010210
411021012112330
5134041141140
612321032420
72065203114
oct511062674
9200301123
1086271420
1144774aa4
1224a85710
1314b47aa1
14b65a044
157891d80
hex52465bc

86271420 has 48 divisors (see below), whose sum is σ = 248095008. Its totient is φ = 22383360.

The previous prime is 86271403. The next prime is 86271431. The reversal of 86271420 is 2417268.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17211 + ... + 21650.

It is an arithmetic number, because the mean of its divisors is an integer number (5168646).

Almost surely, 286271420 is an apocalyptic number.

It is an amenable number.

86271420 is an abundant number, since it is smaller than the sum of its proper divisors (161823588).

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

86271420 is a wasteful number, since it uses less digits than its factorization.

86271420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38910 (or 38908 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 86271420 is about 9288.2409529469. The cubic root of 86271420 is about 441.8643687503.

Adding to 86271420 its reverse (2417268), we get a palindrome (88688688).

The spelling of 86271420 in words is "eighty-six million, two hundred seventy-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 38861 77722 116583 155444 194305 233166 388610 466332 582915 777220 1165830 1437857 2331660 2875714 4313571 5751428 7189285 8627142 14378570 17254284 21567855 28757140 43135710 86271420