Search a number
121624332642420 = 223541132137426787
BaseRepresentation
bin11011101001110111011111…
…001001001010100001110100
3120221122011122212012211020020
4123221313133021022201310
5111420143113124024140
61110401240322405140
734422032225633526
oct3351673711124164
9527564585184206
10121624332642420
1135831654045033
121178373ab007b0
1352b318253877a
142206913225a16
hex6e9ddf24a874

121624332642420 has 96 divisors (see below), whose sum is σ = 349118276121216. Its totient is φ = 31618148812800.

The previous prime is 121624332642413. The next prime is 121624332642451. The reversal of 121624332642420 is 24246233426121.

It is a super-2 number, since 2×1216243326424202 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15463734 + ... + 21963053.

It is an arithmetic number, because the mean of its divisors is an integer number (3636648709596).

Almost surely, 2121624332642420 is an apocalyptic number.

121624332642420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121624332642420 is an abundant number, since it is smaller than the sum of its proper divisors (227493943478796).

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

121624332642420 is a wasteful number, since it uses less digits than its factorization.

121624332642420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37428161 (or 37428159 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 121624332642420 in words is "one hundred twenty-one trillion, six hundred twenty-four billion, three hundred thirty-two million, six hundred forty-two thousand, four hundred twenty".