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48391373581 = 193182158529
BaseRepresentation
bin101101000100010110…
…011100001100001101
311121220110220111000121
4231010112130030031
51243101142423311
634121455024541
73332116613545
oct550426341415
9147813814017
1048391373581
111958273a231
12946620b151
134742706685
1424b0c32325
1513d353eb71
hexb4459c30d

48391373581 has 8 divisors (see below), whose sum is σ = 52581459200. Its totient is φ = 44365605120.

The previous prime is 48391373561. The next prime is 48391373593. The reversal of 48391373581 is 18537319384.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48391373581 - 213 = 48391365389 is a prime.

It is a super-2 number, since 2×483913735812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48391373501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41078676 + ... + 41079853.

It is an arithmetic number, because the mean of its divisors is an integer number (6572682400).

Almost surely, 248391373581 is an apocalyptic number.

It is an amenable number.

48391373581 is a deficient number, since it is larger than the sum of its proper divisors (4190085619).

48391373581 is a wasteful number, since it uses less digits than its factorization.

48391373581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82158579.

The product of its digits is 2177280, while the sum is 52.

The spelling of 48391373581 in words is "forty-eight billion, three hundred ninety-one million, three hundred seventy-three thousand, five hundred eighty-one".

Divisors: 1 19 31 589 82158529 1561012051 2546914399 48391373581