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85940553 = 3191507729
BaseRepresentation
bin1010001111101…
…01100101001001
312222201020021110
411013311211021
5134000044203
612310000533
72062324356
oct507654511
9188636243
1085940553
1144569456
1224946149
1314a602ca
14b5b162d
157828d03
hex51f5949

85940553 has 8 divisors (see below), whose sum is σ = 120618400. Its totient is φ = 54278208.

The previous prime is 85940539. The next prime is 85940563. The reversal of 85940553 is 35504958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85940553 - 24 = 85940537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85940563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753808 + ... + 753921.

It is an arithmetic number, because the mean of its divisors is an integer number (15077300).

Almost surely, 285940553 is an apocalyptic number.

It is an amenable number.

85940553 is a deficient number, since it is larger than the sum of its proper divisors (34677847).

85940553 is a wasteful number, since it uses less digits than its factorization.

85940553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507751.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 85940553 is about 9270.4127739815. The cubic root of 85940553 is about 441.2987676253.

The spelling of 85940553 in words is "eighty-five million, nine hundred forty thousand, five hundred fifty-three".

Divisors: 1 3 19 57 1507729 4523187 28646851 85940553