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131470448 = 2414955147
BaseRepresentation
bin1111101011000…
…01010001110000
3100011101101112212
413311201101300
5232124023243
621013511252
73154323524
oct765412160
9304341485
10131470448
116823676a
1238042528
1321311b85
1413663d84
15b81e318
hex7d61470

131470448 has 20 divisors (see below), whose sum is σ = 256438200. Its totient is φ = 65292864.

The previous prime is 131470441. The next prime is 131470453. The reversal of 131470448 is 844074131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131470441) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25190 + ... + 29957.

It is an arithmetic number, because the mean of its divisors is an integer number (12821910).

Almost surely, 2131470448 is an apocalyptic number.

It is an amenable number.

131470448 is a deficient number, since it is larger than the sum of its proper divisors (124967752).

131470448 is a wasteful number, since it uses less digits than its factorization.

131470448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55304 (or 55298 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 131470448 is about 11466.0563403465. The cubic root of 131470448 is about 508.4825431256.

The spelling of 131470448 in words is "one hundred thirty-one million, four hundred seventy thousand, four hundred forty-eight".

Divisors: 1 2 4 8 16 149 298 596 1192 2384 55147 110294 220588 441176 882352 8216903 16433806 32867612 65735224 131470448