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121414128 = 243112271013
BaseRepresentation
bin1110011110010…
…10000111110000
322110110110212120
413033022013300
5222040223003
620014154240
73003001023
oct717120760
9273413776
10121414128
1162598260
12347b2980
131c2007a4
14121a71ba
15a9d4853
hex73ca1f0

121414128 has 80 divisors (see below), whose sum is σ = 344013696. Its totient is φ = 36593920.

The previous prime is 121414127. The next prime is 121414157. The reversal of 121414128 is 821414121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121414098 and 121414107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121414121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119350 + ... + 120362.

Almost surely, 2121414128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121414128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172006848).

121414128 is an abundant number, since it is smaller than the sum of its proper divisors (222599568).

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

121414128 is a wasteful number, since it uses less digits than its factorization.

121414128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1256 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

The square root of 121414128 is about 11018.8079210049. The cubic root of 121414128 is about 495.1723754320.

Adding to 121414128 its reverse (821414121), we get a palindrome (942828249).

The spelling of 121414128 in words is "one hundred twenty-one million, four hundred fourteen thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 227 264 454 528 681 908 1013 1362 1816 2026 2497 2724 3039 3632 4052 4994 5448 6078 7491 8104 9988 10896 11143 12156 14982 16208 19976 22286 24312 29964 33429 39952 44572 48624 59928 66858 89144 119856 133716 178288 229951 267432 459902 534864 689853 919804 1379706 1839608 2529461 2759412 3679216 5058922 5518824 7588383 10117844 11037648 15176766 20235688 30353532 40471376 60707064 121414128