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121768396 = 22130123399
BaseRepresentation
bin1110100001000…
…00100111001100
322111010110211121
413100200213030
5222133042041
620025530324
73006004621
oct720404714
9274113747
10121768396
116280a442
12349439a4
131c2c5b09
141225a348
15aa547d1
hex74209cc

121768396 has 12 divisors (see below), whose sum is σ = 213267600. Its totient is φ = 60834800.

The previous prime is 121768373. The next prime is 121768429. The reversal of 121768396 is 693867121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496 + ... + 16903.

It is an arithmetic number, because the mean of its divisors is an integer number (17772300).

Almost surely, 2121768396 is an apocalyptic number.

It is an amenable number.

121768396 is a deficient number, since it is larger than the sum of its proper divisors (91499204).

121768396 is a wasteful number, since it uses less digits than its factorization.

121768396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24704 (or 24702 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 121768396 is about 11034.8718162016. The cubic root of 121768396 is about 495.6535203808.

The spelling of 121768396 in words is "one hundred twenty-one million, seven hundred sixty-eight thousand, three hundred ninety-six".

Divisors: 1 2 4 1301 2602 5204 23399 46798 93596 30442099 60884198 121768396