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121752101300 = 22521217521013
BaseRepresentation
bin111000101100011111…
…1011010000110110100
3102122021010001120122012
41301120333122012310
53443322014220200
6131533202023352
711540062533314
oct1613077320664
9378233046565
10121752101300
11476a8983825
121b71a647b58
13b6341a65bb
145c6dd11444
153278beba35
hex1c58fda1b4

121752101300 has 18 divisors (see below), whose sum is σ = 264202060038. Its totient is φ = 48700840480.

The previous prime is 121752101299. The next prime is 121752101369. The reversal of 121752101300 is 3101257121.

121752101300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4495166116 + 117256935184 = 67046^2 + 342428^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 608760407 + ... + 608760606.

Almost surely, 2121752101300 is an apocalyptic number.

121752101300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121752101300 is an abundant number, since it is smaller than the sum of its proper divisors (142449958738).

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

121752101300 is a wasteful number, since it uses less digits than its factorization.

121752101300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217521027 (or 1217521020 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

Adding to 121752101300 its reverse (3101257121), we get a palindrome (124853358421).

The spelling of 121752101300 in words is "one hundred twenty-one billion, seven hundred fifty-two million, one hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1217521013 2435042026 4870084052 6087605065 12175210130 24350420260 30438025325 60876050650 121752101300