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85084406 = 21123168151
BaseRepresentation
bin1010001001001…
…00100011110110
312221002201212022
411010210203312
5133240200111
612235353142
72052130331
oct504444366
9187081768
1085084406
11440341a0
12245b27b2
1314820704
14b42b618
15770a2db
hex51248f6

85084406 has 16 divisors (see below), whose sum is σ = 145283328. Its totient is φ = 36993000.

The previous prime is 85084403. The next prime is 85084409. The reversal of 85084406 is 60448058.

It is an interprime number because it is at equal distance from previous prime (85084403) and next prime (85084409).

It is a super-2 number, since 2×850844062 = 14478712288745672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85084403) 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, 83570 + ... + 84581.

It is an arithmetic number, because the mean of its divisors is an integer number (9080208).

Almost surely, 285084406 is an apocalyptic number.

85084406 is the 4931-st centered heptagonal number.

85084406 is a deficient number, since it is larger than the sum of its proper divisors (60198922).

85084406 is a wasteful number, since it uses less digits than its factorization.

85084406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168187.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 85084406 is about 9224.1208795202. The cubic root of 85084406 is about 439.8284558555.

The spelling of 85084406 in words is "eighty-five million, eighty-four thousand, four hundred six".

Divisors: 1 2 11 22 23 46 253 506 168151 336302 1849661 3699322 3867473 7734946 42542203 85084406