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138462055 = 5227121993
BaseRepresentation
bin10000100000011…
…00001101100111
3100122112121020021
420100030031213
5240421241210
621423420011
73300623314
oct1020141547
9318477207
10138462055
1171181656
123a454607
13228bc314
1414563d0b
15c250bda
hex840c367

138462055 has 8 divisors (see below), whose sum is σ = 166887792. Its totient is φ = 110280768.

The previous prime is 138462053. The next prime is 138462119. The reversal of 138462055 is 550264831.

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 138462055 - 21 = 138462053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138462055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138462053) 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, 59862 + ... + 62131.

It is an arithmetic number, because the mean of its divisors is an integer number (20860974).

Almost surely, 2138462055 is an apocalyptic number.

138462055 is a deficient number, since it is larger than the sum of its proper divisors (28425737).

138462055 is a wasteful number, since it uses less digits than its factorization.

138462055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122225.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 138462055 is about 11766.9900569347. The cubic root of 138462055 is about 517.3410310882.

The spelling of 138462055 in words is "one hundred thirty-eight million, four hundred sixty-two thousand, fifty-five".

Divisors: 1 5 227 1135 121993 609965 27692411 138462055