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137231105 = 5114795209
BaseRepresentation
bin10000010110111…
…11101100000001
3100120020001200112
420023133230001
5240112343410
621341201105
73254305454
oct1013375401
9316201615
10137231105
1170510840
1239b60195
132257ac4b
141432349b
15c0ab105
hex82dfb01

137231105 has 16 divisors (see below), whose sum is σ = 180057600. Its totient is φ = 99576960.

The previous prime is 137231093. The next prime is 137231111. The reversal of 137231105 is 501132731.

It is a de Polignac number, because none of the positive numbers 2k-137231105 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 23741 + ... + 28949.

It is an arithmetic number, because the mean of its divisors is an integer number (11253600).

Almost surely, 2137231105 is an apocalyptic number.

It is an amenable number.

137231105 is a deficient number, since it is larger than the sum of its proper divisors (42826495).

137231105 is a wasteful number, since it uses less digits than its factorization.

137231105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 137231105 is about 11714.5680671547. The cubic root of 137231105 is about 515.8033836672.

Adding to 137231105 its reverse (501132731), we get a palindrome (638363836).

The spelling of 137231105 in words is "one hundred thirty-seven million, two hundred thirty-one thousand, one hundred five".

Divisors: 1 5 11 55 479 2395 5209 5269 26045 26345 57299 286495 2495111 12475555 27446221 137231105