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131533035 = 3515435683
BaseRepresentation
bin1111101011100…
…00100011101011
3100011111120101220
413311300203223
5232133024120
621015113123
73155004144
oct765604353
9304446356
10131533035
1168279797
12380727a3
13213344ca
141367cacb
15b832b40
hex7d708eb

131533035 has 16 divisors (see below), whose sum is σ = 210626304. Its totient is φ = 70093152.

The previous prime is 131533033. The next prime is 131533081. The reversal of 131533035 is 530335131.

It is not a de Polignac number, because 131533035 - 21 = 131533033 is a prime.

It is a super-5 number, since 5×1315330355 (a number of 42 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 131532996 and 131533014.

It is not an unprimeable number, because it can be changed into a prime (131533033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20304 + ... + 25986.

It is an arithmetic number, because the mean of its divisors is an integer number (13164144).

Almost surely, 2131533035 is an apocalyptic number.

131533035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131533035 is a deficient number, since it is larger than the sum of its proper divisors (79093269).

131533035 is a wasteful number, since it uses less digits than its factorization.

131533035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234.

The product of its (nonzero) digits is 2025, while the sum is 24.

The square root of 131533035 is about 11468.7852451775. The cubic root of 131533035 is about 508.5632186657.

Adding to 131533035 its reverse (530335131), we get a palindrome (661868166).

The spelling of 131533035 in words is "one hundred thirty-one million, five hundred thirty-three thousand, thirty-five".

Divisors: 1 3 5 15 1543 4629 5683 7715 17049 23145 28415 85245 8768869 26306607 43844345 131533035