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20061675 = 34529907
BaseRepresentation
bin100110010000…
…1110111101011
31101202020110000
41030201313223
520113433200
61553554043
7332343564
oct114416753
941666400
1020061675
11103626a7
126875923
13420551a
14294316b
151b64300
hex1321deb

20061675 has 30 divisors (see below), whose sum is σ = 37164908. Its totient is φ = 10698480.

The previous prime is 20061673. The next prime is 20061737. The reversal of 20061675 is 57616002.

It is not a de Polignac number, because 20061675 - 21 = 20061673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20061673) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2929 + ... + 6978.

Almost surely, 220061675 is an apocalyptic number.

20061675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20061675 is a deficient number, since it is larger than the sum of its proper divisors (17103233).

20061675 is an equidigital number, since it uses as much as digits as its factorization.

20061675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9929 (or 9915 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 20061675 is about 4479.0261218260. The cubic root of 20061675 is about 271.7204948519.

Adding to 20061675 its reverse (57616002), we get a palindrome (77677677).

It can be divided in two parts, 20061 and 675, that added together give a 4-th power (20736 = 124).

The spelling of 20061675 in words is "twenty million, sixty-one thousand, six hundred seventy-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 405 675 2025 9907 29721 49535 89163 148605 247675 267489 445815 743025 802467 1337445 2229075 4012335 6687225 20061675