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82538830 = 2511750353
BaseRepresentation
bin1001110101101…
…11000101001110
312202022101222201
410322313011032
5132112220310
612105032114
72021365663
oct472670516
9182271881
1082538830
1142655710
122378563a
131413bb5a
14ad67a6a
1573a5e3a
hex4eb714e

82538830 has 16 divisors (see below), whose sum is σ = 162076464. Its totient is φ = 30014080.

The previous prime is 82538809. The next prime is 82538851. The reversal of 82538830 is 3883528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82538809) and next prime (82538851).

It is a self number, because there is not a number n which added to its sum of digits gives 82538830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375067 + ... + 375286.

It is an arithmetic number, because the mean of its divisors is an integer number (10129779).

Almost surely, 282538830 is an apocalyptic number.

82538830 is a deficient number, since it is larger than the sum of its proper divisors (79537634).

82538830 is a wasteful number, since it uses less digits than its factorization.

82538830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750371.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 82538830 is about 9085.0883319867. The cubic root of 82538830 is about 435.3976721897.

The spelling of 82538830 in words is "eighty-two million, five hundred thirty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 750353 1500706 3751765 7503530 8253883 16507766 41269415 82538830