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85542428 = 2223929809
BaseRepresentation
bin1010001100101…
…00011000011100
312221222000011002
411012110120130
5133344324203
612253245432
72056045556
oct506243034
9187860132
1085542428
1144317324
1224793878
131495102a
14b50a4d6
15779ad88
hex519461c

85542428 has 12 divisors (see below), whose sum is σ = 156208080. Its totient is φ = 40911552.

The previous prime is 85542421. The next prime is 85542463. The reversal of 85542428 is 82424558.

It is a junction number, because it is equal to n+sod(n) for n = 85542391 and 85542400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85542421) 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 3 ways as a sum of consecutive naturals, for example, 464813 + ... + 464996.

It is an arithmetic number, because the mean of its divisors is an integer number (13017340).

Almost surely, 285542428 is an apocalyptic number.

It is an amenable number.

85542428 is a deficient number, since it is larger than the sum of its proper divisors (70665652).

85542428 is a wasteful number, since it uses less digits than its factorization.

85542428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929836 (or 929834 counting only the distinct ones).

The product of its digits is 102400, while the sum is 38.

The square root of 85542428 is about 9248.9149633889. The cubic root of 85542428 is about 440.6162645553.

The spelling of 85542428 in words is "eighty-five million, five hundred forty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 23 46 92 929809 1859618 3719236 21385607 42771214 85542428