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121144254 = 23711262217
BaseRepresentation
bin1110011100010…
…00001110111110
322102221202200020
413032020032332
5222003104004
620004313010
73000465150
oct716101676
9272852606
10121144254
1162423520
12346a2766
131c1379ba
1412136ad0
15a97e8d9
hex73883be

121144254 has 32 divisors (see below), whose sum is σ = 302075136. Its totient is φ = 31465920.

The previous prime is 121144229. The next prime is 121144267. The reversal of 121144254 is 452441121.

It is a super-3 number, since 3×1211442543 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 130647 + ... + 131570.

It is an arithmetic number, because the mean of its divisors is an integer number (9439848).

Almost surely, 2121144254 is an apocalyptic number.

121144254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121144254 is an abundant number, since it is smaller than the sum of its proper divisors (180930882).

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

121144254 is a wasteful number, since it uses less digits than its factorization.

121144254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262240.

The product of its digits is 1280, while the sum is 24.

The square root of 121144254 is about 11006.5550468800. Note that the first 3 decimals coincide. The cubic root of 121144254 is about 494.8052207844.

Adding to 121144254 its reverse (452441121), we get a palindrome (573585375).

The spelling of 121144254 in words is "one hundred twenty-one million, one hundred forty-four thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 262217 524434 786651 1573302 1835519 2884387 3671038 5506557 5768774 8653161 11013114 17306322 20190709 40381418 60572127 121144254