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47750538 = 2311723493
BaseRepresentation
bin1011011000100…
…1110110001010
310022211222102110
42312021312022
544211004123
64423243150
71116605253
oct266116612
9108758373
1047750538
1124a54760
1213ba94b6
139b7b574
1464adb2a
1542d3493
hex2d89d8a

47750538 has 16 divisors (see below), whose sum is σ = 104183136. Its totient is φ = 14469840.

The previous prime is 47750537. The next prime is 47750551. The reversal of 47750538 is 83505774.

47750538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×477505382 = 4560227758578888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47750496 and 47750505.

It is not an unprimeable number, because it can be changed into a prime (47750533) 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 7 ways as a sum of consecutive naturals, for example, 361681 + ... + 361812.

It is an arithmetic number, because the mean of its divisors is an integer number (6511446).

Almost surely, 247750538 is an apocalyptic number.

47750538 is an abundant number, since it is smaller than the sum of its proper divisors (56432598).

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

47750538 is a wasteful number, since it uses less digits than its factorization.

47750538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723509.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 47750538 is about 6910.1764087467. The cubic root of 47750538 is about 362.7934378684.

It can be divided in two parts, 477 and 50538, that added together give a palindrome (51015).

The spelling of 47750538 in words is "forty-seven million, seven hundred fifty thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 723493 1446986 2170479 4340958 7958423 15916846 23875269 47750538