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48211806307990 = 2513592861625543
BaseRepresentation
bin10101111011001001011111…
…00101101100011010010110
320022201000002200020200112111
422331210233211230122112
522304400234403323430
6250312110440341234
713104121335011053
oct1275445745543226
9208630080220474
1048211806307990
11143a856a866436
1254a793047481a
1320b947a486540
14bc966cc3802a
15589176866c2a
hex2bd92f96c696

48211806307990 has 32 divisors (see below), whose sum is σ = 93457039265856. Its totient is φ = 17801223845760.

The previous prime is 48211806307981. The next prime is 48211806307993. The reversal of 48211806307990 is 9970360811284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48211806307993) 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, 76759159 + ... + 77384701.

It is an arithmetic number, because the mean of its divisors is an integer number (2920532477058).

Almost surely, 248211806307990 is an apocalyptic number.

48211806307990 is a deficient number, since it is larger than the sum of its proper divisors (45245232957866).

48211806307990 is a wasteful number, since it uses less digits than its factorization.

48211806307990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218424.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 48211806307990 in words is "forty-eight trillion, two hundred eleven billion, eight hundred six million, three hundred seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 592861 625543 1185722 1251086 2964305 3127715 5928610 6255430 7707193 8132059 15414386 16264118 38535965 40660295 77071930 81320590 370860048523 741720097046 1854300242615 3708600485230 4821180630799 9642361261598 24105903153995 48211806307990