Search a number
-
+
121252132484 = 2272618633329
BaseRepresentation
bin111000011101100110…
…0001011011010000100
3102120222021021112100122
41300323030023122010
53441311021214414
6131411422001112
711521512056300
oct1607314133204
9376867245318
10121252132484
114747173885a
121b5bb116198
13b584732772
145c23766d00
153249d8cb8e
hex1c3b30b684

121252132484 has 18 divisors (see below), whose sum is σ = 246834698670. Its totient is φ = 51965199552.

The previous prime is 121252132483. The next prime is 121252132487. The reversal of 121252132484 is 484231252121.

It can be written as a sum of positive squares in only one way, i.e., 95209273600 + 26042858884 = 308560^2 + 161378^2 .

It is not an unprimeable number, because it can be changed into a prime (121252132483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309316469 + ... + 309316860.

It is an arithmetic number, because the mean of its divisors is an integer number (13713038815).

Almost surely, 2121252132484 is an apocalyptic number.

121252132484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121252132484 is an abundant number, since it is smaller than the sum of its proper divisors (125582566186).

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

121252132484 is a wasteful number, since it uses less digits than its factorization.

121252132484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618633347 (or 618633338 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The spelling of 121252132484 in words is "one hundred twenty-one billion, two hundred fifty-two million, one hundred thirty-two thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 618633329 1237266658 2474533316 4330433303 8660866606 17321733212 30313033121 60626066242 121252132484