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131087834 = 2467140351
BaseRepresentation
bin1111101000000…
…11110111011010
3100010122221200222
413310003313122
5232024302314
621001400042
73151141163
oct764036732
9303587628
10131087834
1167aa5259
1237a99022
1321209987
14135a476a
15b795c8e
hex7d03dda

131087834 has 8 divisors (see below), whose sum is σ = 197054208. Its totient is φ = 65403100.

The previous prime is 131087813. The next prime is 131087851. The reversal of 131087834 is 438780131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131087794 and 131087803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69242 + ... + 71109.

It is an arithmetic number, because the mean of its divisors is an integer number (24631776).

Almost surely, 2131087834 is an apocalyptic number.

131087834 is a deficient number, since it is larger than the sum of its proper divisors (65966374).

131087834 is a wasteful number, since it uses less digits than its factorization.

131087834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140820.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 131087834 is about 11449.3595454069. The cubic root of 131087834 is about 507.9887906469.

The spelling of 131087834 in words is "one hundred thirty-one million, eighty-seven thousand, eight hundred thirty-four".

Divisors: 1 2 467 934 140351 280702 65543917 131087834