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131434648 = 2316429331
BaseRepresentation
bin1111101010110…
…00100010011000
3100011022120102221
413311120202120
5232121402043
621013033424
73154114252
oct765304230
9304276387
10131434648
1168211884
1238025874
13212cb7a7
1413654cd2
15b8138ed
hex7d58898

131434648 has 8 divisors (see below), whose sum is σ = 246439980. Its totient is φ = 65717320.

The previous prime is 131434631. The next prime is 131434663. The reversal of 131434648 is 846434131.

131434648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8214658 + ... + 8214673.

Almost surely, 2131434648 is an apocalyptic number.

It is an amenable number.

131434648 is a deficient number, since it is larger than the sum of its proper divisors (115005332).

131434648 is a wasteful number, since it uses less digits than its factorization.

131434648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16429337 (or 16429333 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 131434648 is about 11464.4951044518. The cubic root of 131434648 is about 508.4363849005.

Adding to 131434648 its reverse (846434131), we get a palindrome (977868779).

The spelling of 131434648 in words is "one hundred thirty-one million, four hundred thirty-four thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16429331 32858662 65717324 131434648