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36780985 = 523573121
BaseRepresentation
bin1000110001001…
…1101110111001
32120012200000201
42030103232321
533403442420
63352202201
7624430123
oct214235671
976180021
1036780985
111984210a
1210399361
13780a5c7
144c56213
15336810a
hex2313bb9

36780985 has 8 divisors (see below), whose sum is σ = 44170056. Its totient is φ = 29402880.

The previous prime is 36780983. The next prime is 36781009. The reversal of 36780985 is 58908763.

It can be written as a sum of positive squares in 4 ways, for example, as 1923769 + 34857216 = 1387^2 + 5904^2 .

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

It is not a de Polignac number, because 36780985 - 21 = 36780983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36780983) 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, 10225 + ... + 13345.

It is an arithmetic number, because the mean of its divisors is an integer number (5521257).

Almost surely, 236780985 is an apocalyptic number.

It is an amenable number.

36780985 is a deficient number, since it is larger than the sum of its proper divisors (7389071).

36780985 is a wasteful number, since it uses less digits than its factorization.

36780985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 36780985 is about 6064.7328877701. The cubic root of 36780985 is about 332.5634002004.

The spelling of 36780985 in words is "thirty-six million, seven hundred eighty thousand, nine hundred eighty-five".

Divisors: 1 5 2357 3121 11785 15605 7356197 36780985