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121395468 = 22383121883
BaseRepresentation
bin1110011110001…
…01100100001100
322110102112021110
413033011210030
5222034123333
620013532020
73002562435
oct717054414
9273375243
10121395468
1162585237
12347a4010
131c1c514c
14121a048c
15a9ce063
hex73c590c

121395468 has 24 divisors (see below), whose sum is σ = 286671168. Its totient is φ = 39977296.

The previous prime is 121395457. The next prime is 121395497. The reversal of 121395468 is 864593121.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59946 + ... + 61937.

It is an arithmetic number, because the mean of its divisors is an integer number (11944632).

Almost surely, 2121395468 is an apocalyptic number.

It is an amenable number.

121395468 is an abundant number, since it is smaller than the sum of its proper divisors (165275700).

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

121395468 is a wasteful number, since it uses less digits than its factorization.

121395468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121973 (or 121971 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 121395468 is about 11017.9611544060. The cubic root of 121395468 is about 495.1470066382.

The spelling of 121395468 in words is "one hundred twenty-one million, three hundred ninety-five thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 121883 243766 365649 487532 731298 1462596 10116289 20232578 30348867 40465156 60697734 121395468