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48520829 = 722573853
BaseRepresentation
bin1011100100010…
…1111001111101
310101022010001202
42321011321331
544410131304
64451545245
71126264100
oct271057175
9111263052
1048520829
1125430465
12142bb225
13a08b066
146630737
1543d681e
hex2e45e7d

48520829 has 12 divisors (see below), whose sum is σ = 56676924. Its totient is φ = 41416704.

The previous prime is 48520817. The next prime is 48520831. The reversal of 48520829 is 92802584.

It can be written as a sum of positive squares in 2 ways, for example, as 47927929 + 592900 = 6923^2 + 770^2 .

It is a de Polignac number, because none of the positive numbers 2k-48520829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48520792 and 48520801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48520229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10667 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (4723077).

Almost surely, 248520829 is an apocalyptic number.

48520829 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

48520829 is a deficient number, since it is larger than the sum of its proper divisors (8156095).

48520829 is a wasteful number, since it uses less digits than its factorization.

48520829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 48520829 is about 6965.6894131163. The cubic root of 48520829 is about 364.7338498869.

The spelling of 48520829 in words is "forty-eight million, five hundred twenty thousand, eight hundred twenty-nine".

Divisors: 1 7 49 257 1799 3853 12593 26971 188797 990221 6931547 48520829