Search a number
-
+
121093863748 = 221113829255371
BaseRepresentation
bin111000011000111000…
…0011011100101000100
3102120120020110122110121
41300301300123211010
53441000012114443
6131344005431324
711514550600354
oct1606160334504
9376506418417
10121093863748
11473a0369150
121b57610b544
13b55a9ca020
145c0a728b64
15323b0284ed
hex1c31c1b944

121093863748 has 48 divisors (see below), whose sum is σ = 249263501760. Its totient is φ = 50747126400.

The previous prime is 121093863743. The next prime is 121093863749. The reversal of 121093863748 is 847368390121.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 121093863695 and 121093863704.

It is not an unprimeable number, because it can be changed into a prime (121093863743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346503 + ... + 601873.

It is an arithmetic number, because the mean of its divisors is an integer number (5192989620).

Almost surely, 2121093863748 is an apocalyptic number.

It is an amenable number.

121093863748 is an abundant number, since it is smaller than the sum of its proper divisors (128169638012).

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

121093863748 is a wasteful number, since it uses less digits than its factorization.

121093863748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256228 (or 256226 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 121093863748 in words is "one hundred twenty-one billion, ninety-three million, eight hundred sixty-three thousand, seven hundred forty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 829 1658 3316 9119 10777 18238 21554 36476 43108 118547 237094 255371 474188 510742 1021484 2809081 3319823 5618162 6639646 11236324 13279292 36518053 73036106 146072212 211702559 423405118 846810236 2328728149 2752133267 4657456298 5504266534 9314912596 11008533068 30273465937 60546931874 121093863748