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6985436 = 2217432389
BaseRepresentation
bin11010101001011011011100
3111010220012212
4122221123130
53242013221
6405415552
7113242463
oct32513334
914126185
106985436
113a41297
12240a5b8
1315a76c3
14cdb9da
1592eb5b
hex6a96dc

6985436 has 24 divisors (see below), whose sum is σ = 13250160. Its totient is φ = 3209472.

The previous prime is 6985427. The next prime is 6985439. The reversal of 6985436 is 6345896.

It is a super-2 number, since 2×69854362 = 97592632220192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 6985393 and 6985402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 4118.

It is an arithmetic number, because the mean of its divisors is an integer number (552090).

Almost surely, 26985436 is an apocalyptic number.

It is an amenable number.

6985436 is a deficient number, since it is larger than the sum of its proper divisors (6264724).

6985436 is a wasteful number, since it uses less digits than its factorization.

6985436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453 (or 2451 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 6985436 is about 2642.9975406723. The cubic root of 6985436 is about 191.1603598314.

The spelling of 6985436 in words is "six million, nine hundred eighty-five thousand, four hundred thirty-six".

Divisors: 1 2 4 17 34 43 68 86 172 731 1462 2389 2924 4778 9556 40613 81226 102727 162452 205454 410908 1746359 3492718 6985436