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121648710 = 2354054957
BaseRepresentation
bin1110100000000…
…11011001000110
322110220101122210
413100003121012
5222120224320
620023204250
73004665651
oct720033106
9273811583
10121648710
1162738527
12348a6686
131c2834b1
1412228898
15aa2e0e0
hex7403646

121648710 has 16 divisors (see below), whose sum is σ = 291956976. Its totient is φ = 32439648.

The previous prime is 121648699. The next prime is 121648717. The reversal of 121648710 is 17846121.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4054957 = 121648710 / (1 + 2 + 1 + 6 + 4 + 8 + 7 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121648717) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2027449 + ... + 2027508.

It is an arithmetic number, because the mean of its divisors is an integer number (18247311).

Almost surely, 2121648710 is an apocalyptic number.

121648710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121648710 is an abundant number, since it is smaller than the sum of its proper divisors (170308266).

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

121648710 is a wasteful number, since it uses less digits than its factorization.

121648710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054967.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 121648710 is about 11029.4474022954. The cubic root of 121648710 is about 495.4910747438.

The spelling of 121648710 in words is "one hundred twenty-one million, six hundred forty-eight thousand, seven hundred ten".

Divisors: 1 2 3 5 6 10 15 30 4054957 8109914 12164871 20274785 24329742 40549570 60824355 121648710