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48917274757 = 1361252124469
BaseRepresentation
bin101101100011101100…
…100110000010000101
311200021010111000210221
4231203230212002011
51300140310243012
634250002544341
73351133655251
oct554354460205
9150233430727
1048917274757
11198225875aa
1295923680b1
1347c7659bc0
142520a0b261
1514147c2507
hexb63b26085

48917274757 has 16 divisors (see below), whose sum is σ = 53567179120. Its totient is φ = 44394739200.

The previous prime is 48917274727. The next prime is 48917274773. The reversal of 48917274757 is 75747271984.

It can be written as a sum of positive squares in 8 ways, for example, as 37765703556 + 11151571201 = 194334^2 + 105601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48917274757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is the 221173-rd Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 48917274695 and 48917274704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48917274727) by changing a digit.

It is a nontrivial repunit in base 221172.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986919 + ... + 2011387.

It is an arithmetic number, because the mean of its divisors is an integer number (3347948695).

Almost surely, 248917274757 is an apocalyptic number.

It is an amenable number.

48917274757 is a deficient number, since it is larger than the sum of its proper divisors (4649904363).

48917274757 is a wasteful number, since it uses less digits than its factorization.

48917274757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27064.

The product of its digits is 27659520, while the sum is 61.

The spelling of 48917274757 in words is "forty-eight billion, nine hundred seventeen million, two hundred seventy-four thousand, seven hundred fifty-seven".

Divisors: 1 13 61 793 2521 24469 32773 153781 318097 1492609 1999153 19403917 61686349 801922537 3762867289 48917274757