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72486286 = 21012291567
BaseRepresentation
bin1000101001000…
…00110110001110
312001101200111021
410110200312032
5122024030121
611105344354
71540060165
oct424406616
9161350437
1072486286
1137a0a024
12203380ba
131202c3c2
1498ac3dc
15656c641
hex4520d8e

72486286 has 16 divisors (see below), whose sum is σ = 110355840. Its totient is φ = 35704800.

The previous prime is 72486251. The next prime is 72486287. The reversal of 72486286 is 68268427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72486287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45475 + ... + 47041.

It is an arithmetic number, because the mean of its divisors is an integer number (6897240).

Almost surely, 272486286 is an apocalyptic number.

72486286 is a deficient number, since it is larger than the sum of its proper divisors (37869554).

72486286 is a wasteful number, since it uses less digits than its factorization.

72486286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its digits is 258048, while the sum is 43.

The square root of 72486286 is about 8513.8878310675. The cubic root of 72486286 is about 416.9512524797.

The spelling of 72486286 in words is "seventy-two million, four hundred eighty-six thousand, two hundred eighty-six".

Divisors: 1 2 101 202 229 458 1567 3134 23129 46258 158267 316534 358843 717686 36243143 72486286