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121421060 = 2257438171
BaseRepresentation
bin1110011110010…
…11110100000100
322110110211101022
413033023310010
5222040433220
620014250312
73003030155
oct717136404
9273424338
10121421060
11625a2492
12347b6998
131c2039a7
14121a992c
15a9d6925
hex73cbd04

121421060 has 24 divisors (see below), whose sum is σ = 255358656. Its totient is φ = 48497120.

The previous prime is 121421033. The next prime is 121421081. The reversal of 121421060 is 60124121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10775 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (10639944).

Almost surely, 2121421060 is an apocalyptic number.

121421060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121421060 is an abundant number, since it is smaller than the sum of its proper divisors (133937596).

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

121421060 is a wasteful number, since it uses less digits than its factorization.

121421060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923 (or 8921 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121421060 is about 11019.1224695980. The cubic root of 121421060 is about 495.1817990184.

Adding to 121421060 its reverse (60124121), we get a palindrome (181545181).

The spelling of 121421060 in words is "one hundred twenty-one million, four hundred twenty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 743 1486 2972 3715 7430 8171 14860 16342 32684 40855 81710 163420 6071053 12142106 24284212 30355265 60710530 121421060