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85814740 = 22511390067
BaseRepresentation
bin1010001110101…
…10110111010100
312222110211200201
411013112313110
5133432032430
612303150244
72061261514
oct507266724
9188424621
1085814740
1144492980
12248a5384
1314a17c6b
14b57b844
1578018ca
hex51d6dd4

85814740 has 24 divisors (see below), whose sum is σ = 196594272. Its totient is φ = 31205280.

The previous prime is 85814731. The next prime is 85814761. The reversal of 85814740 is 4741858.

It is a self number, because there is not a number n which added to its sum of digits gives 85814740.

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, 194814 + ... + 195253.

It is an arithmetic number, because the mean of its divisors is an integer number (8191428).

Almost surely, 285814740 is an apocalyptic number.

It is an amenable number.

85814740 is an abundant number, since it is smaller than the sum of its proper divisors (110779532).

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

85814740 is a wasteful number, since it uses less digits than its factorization.

85814740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390087 (or 390085 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 85814740 is about 9263.6245606134. The cubic root of 85814740 is about 441.0833154496.

The spelling of 85814740 in words is "eighty-five million, eight hundred fourteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 390067 780134 1560268 1950335 3900670 4290737 7801340 8581474 17162948 21453685 42907370 85814740