Search a number
-
+
122661308 = 22721156893
BaseRepresentation
bin1110100111110…
…10100110111100
322112210211200102
413103322212330
5222400130213
620101020232
73016414100
oct723724674
9275724612
10122661308
116326a290
12350b4678
131c549373
141240d900
15ab7e158
hex74fa9bc

122661308 has 36 divisors (see below), whose sum is σ = 272408472. Its totient is φ = 47789280.

The previous prime is 122661293. The next prime is 122661311. The reversal of 122661308 is 803166221.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26291 + ... + 30602.

It is an arithmetic number, because the mean of its divisors is an integer number (7566902).

Almost surely, 2122661308 is an apocalyptic number.

It is an amenable number.

122661308 is an abundant number, since it is smaller than the sum of its proper divisors (149747164).

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

122661308 is a wasteful number, since it uses less digits than its factorization.

122661308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56922 (or 56913 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 122661308 is about 11075.2565658769. The cubic root of 122661308 is about 496.8620922665.

The spelling of 122661308 in words is "one hundred twenty-two million, six hundred sixty-one thousand, three hundred eight".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 56893 113786 227572 398251 625823 796502 1251646 1593004 2503292 2787757 4380761 5575514 8761522 11151028 17523044 30665327 61330654 122661308