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135241493 = 412431871
BaseRepresentation
bin10000000111110…
…01111100010101
3100102110222110012
420003321330111
5234110211433
621230410005
73231351032
oct1003717425
9312428405
10135241493
116a381a32
1239360905
132203246a
1413d66389
15bd16848
hex80f9f15

135241493 has 12 divisors (see below), whose sum is σ = 141920064. Its totient is φ = 128805600.

The previous prime is 135241427. The next prime is 135241501. The reversal of 135241493 is 394142531.

135241493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135241493 - 28 = 135241237 is a prime.

It is a super-2 number, since 2×1352414932 = 36580522857738098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135241693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71348 + ... + 73218.

It is an arithmetic number, because the mean of its divisors is an integer number (11826672).

Almost surely, 2135241493 is an apocalyptic number.

It is an amenable number.

135241493 is a deficient number, since it is larger than the sum of its proper divisors (6678571).

135241493 is an equidigital number, since it uses as much as digits as its factorization.

135241493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1955 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 135241493 is about 11629.3375993648. The cubic root of 135241493 is about 513.2984886207.

The spelling of 135241493 in words is "one hundred thirty-five million, two hundred forty-one thousand, four hundred ninety-three".

Divisors: 1 41 43 1681 1763 1871 72283 76711 80453 3145151 3298573 135241493