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390141504 = 26328232
BaseRepresentation
bin10111010000010…
…001011001000000
31000012010020112100
4113100101121000
51244334012004
6102414030400
712445101534
oct2720213100
91005106470
10390141504
111902520a5
12aa7a8400
1362a9c27c
1439b59bc4
15243b7739
hex17411640

390141504 has 63 divisors (see below), whose sum is σ = 1119630603. Its totient is φ = 129889152.

The previous prime is 390141467. The next prime is 390141509. The reversal of 390141504 is 405141093.

The square root of 390141504 is 19752.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (390141509) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 473637 + ... + 474459.

Almost surely, 2390141504 is an apocalyptic number.

390141504 is the 19752-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390141504

390141504 is an abundant number, since it is smaller than the sum of its proper divisors (729489099).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390141504 is an frugal number, since it uses more digits than its factorization.

390141504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 390141504 is about 730.7027098446.

Adding to 390141504 its reverse (405141093), we get a palindrome (795282597).

The spelling of 390141504 in words is "three hundred ninety million, one hundred forty-one thousand, five hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 823 1646 2469 3292 4938 6584 7407 9876 13168 14814 19752 26336 29628 39504 52672 59256 79008 118512 158016 237024 474048 677329 1354658 2031987 2709316 4063974 5418632 6095961 8127948 10837264 12191922 16255896 21674528 24383844 32511792 43349056 48767688 65023584 97535376 130047168 195070752 390141504