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85454169 = 3132121563
BaseRepresentation
bin1010001011111…
…10110101011001
312221210112002020
411011332311121
5133334013134
612251325053
72055230343
oct505766531
9187715066
1085454169
1144266a89
1224750789
131491cac8
14b4c6293
15777eb49
hex517ed59

85454169 has 8 divisors (see below), whose sum is σ = 114030432. Its totient is φ = 56923680.

The previous prime is 85454143. The next prime is 85454207. The reversal of 85454169 is 96145458.

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

It is not a de Polignac number, because 85454169 - 25 = 85454137 is a prime.

It is a super-2 number, since 2×854541692 = 14604829998961122, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 85454169.

It is not an unprimeable number, because it can be changed into a prime (85454119) 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, 6819 + ... + 14744.

It is an arithmetic number, because the mean of its divisors is an integer number (14253804).

Almost surely, 285454169 is an apocalyptic number.

It is an amenable number.

85454169 is a deficient number, since it is larger than the sum of its proper divisors (28576263).

85454169 is a wasteful number, since it uses less digits than its factorization.

85454169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22887.

The product of its digits is 172800, while the sum is 42.

The square root of 85454169 is about 9244.1424156057. The cubic root of 85454169 is about 440.4646761022.

The spelling of 85454169 in words is "eighty-five million, four hundred fifty-four thousand, one hundred sixty-nine".

Divisors: 1 3 1321 3963 21563 64689 28484723 85454169