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85213667 = 7111106671
BaseRepresentation
bin1010001010001…
…00000111100011
312221100022011202
411011010013203
5133303314132
612242231415
72053206230
oct505040743
9187308152
1085213667
1144112320
122465556b
13148674b6
14b462787
157733762
hex51441e3

85213667 has 8 divisors (see below), whose sum is σ = 106240512. Its totient is φ = 66400200.

The previous prime is 85213649. The next prime is 85213669. The reversal of 85213667 is 76631258.

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

It is a cyclic number.

It is not a de Polignac number, because 85213667 - 26 = 85213603 is a prime.

It is a super-2 number, since 2×852136672 = 14522738087173778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85213667.

It is not an unprimeable number, because it can be changed into a prime (85213669) 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, 553259 + ... + 553412.

It is an arithmetic number, because the mean of its divisors is an integer number (13280064).

Almost surely, 285213667 is an apocalyptic number.

85213667 is a deficient number, since it is larger than the sum of its proper divisors (21026845).

85213667 is a wasteful number, since it uses less digits than its factorization.

85213667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106689.

The product of its digits is 60480, while the sum is 38.

The square root of 85213667 is about 9231.1249043657. The cubic root of 85213667 is about 440.0510736168.

The spelling of 85213667 in words is "eighty-five million, two hundred thirteen thousand, six hundred sixty-seven".

Divisors: 1 7 11 77 1106671 7746697 12173381 85213667