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48731943 = 3134329059
BaseRepresentation
bin1011100111100…
…1011100100111
310101200211122210
42321321130213
544433410233
64500254503
71131133431
oct271713447
9111624583
1048731943
1125565037
12143a1433
13a133190
146687651
154429163
hex2e79727

48731943 has 16 divisors (see below), whose sum is σ = 71603840. Its totient is φ = 29290464.

The previous prime is 48731939. The next prime is 48731957. The reversal of 48731943 is 34913784.

It is not a de Polignac number, because 48731943 - 22 = 48731939 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48731933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12853 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (4475240).

Almost surely, 248731943 is an apocalyptic number.

48731943 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

48731943 is a deficient number, since it is larger than the sum of its proper divisors (22871897).

48731943 is a wasteful number, since it uses less digits than its factorization.

48731943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29118.

The product of its digits is 72576, while the sum is 39.

The square root of 48731943 is about 6980.8268134942. The cubic root of 48731943 is about 365.2620698736.

The spelling of 48731943 in words is "forty-eight million, seven hundred thirty-one thousand, nine hundred forty-three".

Divisors: 1 3 13 39 43 129 559 1677 29059 87177 377767 1133301 1249537 3748611 16243981 48731943