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135102479 = 478928211
BaseRepresentation
bin10000000110110…
…00000000001111
3100102012220202112
420003120000033
5234041234404
621223414235
73230231531
oct1003300017
9312186675
10135102479
116a297546
12392b437b
1321cb40c5
1413d2b851
15bcda56e
hex80d800f

135102479 has 4 divisors (see below), whose sum is σ = 135135480. Its totient is φ = 135069480.

The previous prime is 135102469. The next prime is 135102481. The reversal of 135102479 is 974201531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135102479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135102419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9317 + ... + 18894.

It is an arithmetic number, because the mean of its divisors is an integer number (33783870).

Almost surely, 2135102479 is an apocalyptic number.

135102479 is a deficient number, since it is larger than the sum of its proper divisors (33001).

135102479 is an equidigital number, since it uses as much as digits as its factorization.

135102479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33000.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 135102479 is about 11623.3591960328. The cubic root of 135102479 is about 513.1225560792.

The spelling of 135102479 in words is "one hundred thirty-five million, one hundred two thousand, four hundred seventy-nine".

Divisors: 1 4789 28211 135102479