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48131838 = 2322673991
BaseRepresentation
bin1011011110011…
…0111011111110
310100120100110200
42313212323332
544310204323
64435344330
71123054026
oct267467376
9110510420
1048131838
1125195187
12141520a6
139c82ca1
14656ca86
15435b443
hex2de6efe

48131838 has 12 divisors (see below), whose sum is σ = 104285688. Its totient is φ = 16043940.

The previous prime is 48131833. The next prime is 48131849. The reversal of 48131838 is 83813184.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48131833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1336978 + ... + 1337013.

It is an arithmetic number, because the mean of its divisors is an integer number (8690474).

Almost surely, 248131838 is an apocalyptic number.

48131838 is an abundant number, since it is smaller than the sum of its proper divisors (56153850).

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

48131838 is a wasteful number, since it uses less digits than its factorization.

48131838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673999 (or 2673996 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 48131838 is about 6937.7112940796. The cubic root of 48131838 is about 363.7565443255.

The spelling of 48131838 in words is "forty-eight million, one hundred thirty-one thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 2673991 5347982 8021973 16043946 24065919 48131838