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121670342 = 21075091117
BaseRepresentation
bin1110100000010…
…00101011000110
322110221111022222
413100020223012
5222121422332
620023452342
73005116013
oct720105306
9273844288
10121670342
1162752802
12348b70b2
131c2902b1
141223270a
15aa35712
hex7408ac6

121670342 has 16 divisors (see below), whose sum is σ = 184738320. Its totient is φ = 60094368.

The previous prime is 121670327. The next prime is 121670369. The reversal of 121670342 is 243076121.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 108368 + ... + 109484.

It is an arithmetic number, because the mean of its divisors is an integer number (11546145).

Almost surely, 2121670342 is an apocalyptic number.

121670342 is a deficient number, since it is larger than the sum of its proper divisors (63067978).

121670342 is a wasteful number, since it uses less digits than its factorization.

121670342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 121670342 is about 11030.4280062018. The cubic root of 121670342 is about 495.5204429896.

The spelling of 121670342 in words is "one hundred twenty-one million, six hundred seventy thousand, three hundred forty-two".

Divisors: 1 2 107 214 509 1018 1117 2234 54463 108926 119519 239038 568553 1137106 60835171 121670342