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131422344 = 23313141801
BaseRepresentation
bin1111101010101…
…01100010001000
3100011021221120020
413311111202020
5232121003334
621012500440
73154033344
oct765254210
9304257506
10131422344
1168203609
123801a720
13212c6001
1413650624
15b80ee49
hex7d55888

131422344 has 32 divisors (see below), whose sum is σ = 331071840. Its totient is φ = 43472000.

The previous prime is 131422301. The next prime is 131422363. The reversal of 131422344 is 443224131.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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 in 7 ways as a sum of consecutive naturals, for example, 17757 + ... + 24044.

It is an arithmetic number, because the mean of its divisors is an integer number (10345995).

Almost surely, 2131422344 is an apocalyptic number.

It is an amenable number.

131422344 is an abundant number, since it is smaller than the sum of its proper divisors (199649496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131422344 is a wasteful number, since it uses less digits than its factorization.

131422344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41941 (or 41937 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 131422344 is about 11463.9584786408. The cubic root of 131422344 is about 508.4205189762.

Adding to 131422344 its reverse (443224131), we get a palindrome (574646475).

The spelling of 131422344 in words is "one hundred thirty-one million, four hundred twenty-two thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 131 262 393 524 786 1048 1572 3144 41801 83602 125403 167204 250806 334408 501612 1003224 5475931 10951862 16427793 21903724 32855586 43807448 65711172 131422344