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121351250454 = 2374843759651
BaseRepresentation
bin111000100000100011…
…0010010001000010110
3102121020011210020122120
41301001012102020112
53442011410003304
6131425322240410
711524124416050
oct1610106221026
9377204706576
10121351250454
1147512687635
121b628356106
13b59c127955
145c329a88d0
15325391b0d9
hex1c41192216

121351250454 has 32 divisors (see below), whose sum is σ = 277384663296. Its totient is φ = 34670488800.

The previous prime is 121351250381. The next prime is 121351250459. The reversal of 121351250454 is 454052153121.

121351250454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1213512504542 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121351250459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004529 + ... + 2064179.

It is an arithmetic number, because the mean of its divisors is an integer number (8668270728).

Almost surely, 2121351250454 is an apocalyptic number.

121351250454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121351250454 is an abundant number, since it is smaller than the sum of its proper divisors (156033412842).

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

121351250454 is a wasteful number, since it uses less digits than its factorization.

121351250454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108100.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 121351250454 in words is "one hundred twenty-one billion, three hundred fifty-one million, two hundred fifty thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 48437 59651 96874 119302 145311 178953 290622 339059 357906 417557 678118 835114 1017177 1252671 2034354 2505342 2889315487 5778630974 8667946461 17335892922 20225208409 40450416818 60675625227 121351250454