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48781678292 = 2218617655069
BaseRepresentation
bin101101011011100111…
…010101011011010100
311122220200100000102122
4231123213111123110
51244401102201132
634224320355112
73344566265264
oct553347253324
9148820300378
1048781678292
1119762a92a06
129554a75a98
1347a5531cc9
14250a9d17a4
15140793a912
hexb5b9d56d4

48781678292 has 12 divisors (see below), whose sum is σ = 85372652820. Its totient is φ = 24389491776.

The previous prime is 48781678291. The next prime is 48781678433. The reversal of 48781678292 is 29287618784.

It can be written as a sum of positive squares in 2 ways, for example, as 40640947216 + 8140731076 = 201596^2 + 90226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48781678291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253067 + ... + 402002.

It is an arithmetic number, because the mean of its divisors is an integer number (7114387735).

Almost surely, 248781678292 is an apocalyptic number.

It is an amenable number.

48781678292 is a deficient number, since it is larger than the sum of its proper divisors (36590974528).

48781678292 is a wasteful number, since it uses less digits than its factorization.

48781678292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673690 (or 673688 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 62.

The spelling of 48781678292 in words is "forty-eight billion, seven hundred eighty-one million, six hundred seventy-eight thousand, two hundred ninety-two".

Divisors: 1 2 4 18617 37234 74468 655069 1310138 2620276 12195419573 24390839146 48781678292