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137942229 = 3449102407
BaseRepresentation
bin10000011100011…
…01010011010101
3100121120012011110
420032031103111
5240303122404
621404325233
73263326635
oct1016152325
9317505143
10137942229
1170957047
123a243819
1322769829
141446a6c5
15c19bb89
hex838d4d5

137942229 has 8 divisors (see below), whose sum is σ = 184334400. Its totient is φ = 91755776.

The previous prime is 137942221. The next prime is 137942239. The reversal of 137942229 is 922249731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137942229 - 23 = 137942221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137942221) by changing a digit.

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, 49857 + ... + 52550.

It is an arithmetic number, because the mean of its divisors is an integer number (23041800).

Almost surely, 2137942229 is an apocalyptic number.

It is an amenable number.

137942229 is a deficient number, since it is larger than the sum of its proper divisors (46392171).

137942229 is a wasteful number, since it uses less digits than its factorization.

137942229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102859.

The product of its digits is 54432, while the sum is 39.

The square root of 137942229 is about 11744.8809700226. The cubic root of 137942229 is about 516.6928039963.

The spelling of 137942229 in words is "one hundred thirty-seven million, nine hundred forty-two thousand, two hundred twenty-nine".

Divisors: 1 3 449 1347 102407 307221 45980743 137942229