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121463740 = 22520173011
BaseRepresentation
bin1110011110101…
…10001110111100
322110112222221001
413033112032330
5222043314430
620015220044
73003265456
oct717261674
9273488831
10121463740
1162621562
1234817624
131c21a248
14121bb2d6
15a9e43ca
hex73d63bc

121463740 has 24 divisors (see below), whose sum is σ = 255285072. Its totient is φ = 48545280.

The previous prime is 121463717. The next prime is 121463743. The reversal of 121463740 is 47364121.

It is a junction number, because it is equal to n+sod(n) for n = 121463699 and 121463708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121463743) 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 7 ways as a sum of consecutive naturals, for example, 38835 + ... + 41845.

It is an arithmetic number, because the mean of its divisors is an integer number (10636878).

Almost surely, 2121463740 is an apocalyptic number.

121463740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121463740 is an abundant number, since it is smaller than the sum of its proper divisors (133821332).

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

121463740 is a wasteful number, since it uses less digits than its factorization.

121463740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037 (or 5035 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 121463740 is about 11021.0589327886. The cubic root of 121463740 is about 495.2398116986.

The spelling of 121463740 in words is "one hundred twenty-one million, four hundred sixty-three thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 2017 3011 4034 6022 8068 10085 12044 15055 20170 30110 40340 60220 6073187 12146374 24292748 30365935 60731870 121463740