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121301420 = 2256065071
BaseRepresentation
bin1110011101011…
…10100110101100
322110020202021012
413032232212230
5222023121140
620011524352
73002021312
oct716564654
9273222235
10121301420
1162520609
12347596b8
131c1913b6
14121780b2
15a9b1265
hex73ae9ac

121301420 has 12 divisors (see below), whose sum is σ = 254733024. Its totient is φ = 48520560.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301420 is 24103121.

It is a junction number, because it is equal to n+sod(n) for n = 121301395 and 121301404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3032516 + ... + 3032555.

It is an arithmetic number, because the mean of its divisors is an integer number (21227752).

Almost surely, 2121301420 is an apocalyptic number.

121301420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301420 is an abundant number, since it is smaller than the sum of its proper divisors (133431604).

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

121301420 is a wasteful number, since it uses less digits than its factorization.

121301420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065080 (or 6065078 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121301420 is about 11013.6923872060. The cubic root of 121301420 is about 495.0191061564.

Adding to 121301420 its reverse (24103121), we get a palindrome (145404541).

The spelling of 121301420 in words is "one hundred twenty-one million, three hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 6065071 12130142 24260284 30325355 60650710 121301420