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135044831 = 1131916257
BaseRepresentation
bin10000000110010…
…01111011011111
3100102002222200102
420003021323133
5234032413311
621222251315
73226601465
oct1003117337
9312088612
10135044831
116a2581a9
1239286b3b
1321c93aac
1413d14835
15bcc843b
hex80c9edf

135044831 has 8 divisors (see below), whose sum is σ = 136975104. Its totient is φ = 133127680.

The previous prime is 135044827. The next prime is 135044839. The reversal of 135044831 is 138440531.

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 135044831 - 22 = 135044827 is a prime.

It is a super-2 number, since 2×1350448312 = 36474212759637122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135044794 and 135044803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135044839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18455 + ... + 24711.

It is an arithmetic number, because the mean of its divisors is an integer number (17121888).

Almost surely, 2135044831 is an apocalyptic number.

135044831 is a deficient number, since it is larger than the sum of its proper divisors (1930273).

135044831 is a wasteful number, since it uses less digits than its factorization.

135044831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 135044831 is about 11620.8790975554. The cubic root of 135044831 is about 513.0495628530.

The spelling of 135044831 in words is "one hundred thirty-five million, forty-four thousand, eight hundred thirty-one".

Divisors: 1 113 191 6257 21583 707041 1195087 135044831