Search a number
-
+
868831440754 = 219197668917351
BaseRepresentation
bin11001010010010100110…
…00111010111101110010
310002001121100122012221011
430221022120322331302
5103213331322101004
61503045145021134
7116525311252264
oct14511230727562
93061540565834
10868831440754
11305518774a22
12120475a847aa
1363c1328a544
14300a1ab3b34
1517901028004
hexca4a63af72

868831440754 has 32 divisors (see below), whose sum is σ = 1379088374400. Its totient is φ = 409377830400.

The previous prime is 868831440721. The next prime is 868831440779. The reversal of 868831440754 is 457044138868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50065179 + ... + 50082529.

It is an arithmetic number, because the mean of its divisors is an integer number (43096511700).

Almost surely, 2868831440754 is an apocalyptic number.

868831440754 is a deficient number, since it is larger than the sum of its proper divisors (510256933646).

868831440754 is a wasteful number, since it uses less digits than its factorization.

868831440754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24258.

The product of its (nonzero) digits is 20643840, while the sum is 58.

The spelling of 868831440754 in words is "eight hundred sixty-eight billion, eight hundred thirty-one million, four hundred forty thousand, seven hundred fifty-four".

Divisors: 1 2 19 38 197 394 3743 6689 7486 13378 17351 34702 127091 254182 329669 659338 1317733 2635466 3418147 6836294 25036927 50073854 64944793 116060839 129889586 232121678 2205155941 4410311882 22863985283 45727970566 434415720377 868831440754