Search a number
-
+
121230240114440 = 23525177491155821
BaseRepresentation
bin11011100100001000011101…
…011001011110011100001000
3120220020111102212121010101102
4123210020131121132130020
5111342214012432130230
61105500223052040532
734351411235466152
oct3344103531363410
9526214385533342
10121230240114440
113569a502095916
121171b296163148
135284c68a6a702
1421d1809867ad2
15e0372409a045
hex6e421d65e708

121230240114440 has 64 divisors (see below), whose sum is σ = 273860057056320. Its totient is φ = 48297967200000.

The previous prime is 121230240114421. The next prime is 121230240114461. The reversal of 121230240114440 is 44411042032121.

It is a super-2 number, since 2×1212302401144402 (a number of 29 digits) contains 22 as substring.

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, 777931730 + ... + 778087550.

It is an arithmetic number, because the mean of its divisors is an integer number (4279063391505).

Almost surely, 2121230240114440 is an apocalyptic number.

121230240114440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230240114440 is an abundant number, since it is smaller than the sum of its proper divisors (152629816941880).

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

121230240114440 is a wasteful number, since it uses less digits than its factorization.

121230240114440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233574 (or 233570 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 121230240114440 its reverse (44411042032121), we get a palindrome (165641282146561).

The spelling of 121230240114440 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred forty million, one hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 251 502 1004 1255 2008 2510 5020 10040 77491 154982 155821 309964 311642 387455 619928 623284 774910 779105 1246568 1549820 1558210 3099640 3116420 6232840 19450241 38900482 39111071 77800964 78222142 97251205 155601928 156444284 194502410 195555355 312888568 389004820 391110710 778009640 782221420 1564442840 12074725111 24149450222 48298900444 60373625555 96597800888 120747251110 241494502220 482989004440 3030756002861 6061512005722 12123024011444 15153780014305 24246048022888 30307560028610 60615120057220 121230240114440