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47887242421870 = 256131997809413
BaseRepresentation
bin10101110001101100111100…
…00100101110011001101110
320021112222100021000221202101
422320312132010232121232
522234041033024444440
6245503032342045314
713041511336340155
oct1270663604563156
9207488307027671
1047887242421870
1114292957a24a05
125454a5071983a
132094994598797
14bb7a7d63459c
155809cc92e69a
hex2b8d9e12e66e

47887242421870 has 16 divisors (see below), whose sum is σ = 86197187966400. Its totient is φ = 19154863278304.

The previous prime is 47887242421861. The next prime is 47887242421873. The reversal of 47887242421870 is 7812424278874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47887242421873) 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, 2227284 + ... + 10036696.

It is an arithmetic number, because the mean of its divisors is an integer number (5387324247900).

Almost surely, 247887242421870 is an apocalyptic number.

47887242421870 is a deficient number, since it is larger than the sum of its proper divisors (38309945544530).

47887242421870 is a wasteful number, since it uses less digits than its factorization.

47887242421870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422619.

The product of its (nonzero) digits is 89915392, while the sum is 64.

The spelling of 47887242421870 in words is "forty-seven trillion, eight hundred eighty-seven billion, two hundred forty-two million, four hundred twenty-one thousand, eight hundred seventy".

Divisors: 1 2 5 10 613199 1226398 3065995 6131990 7809413 15618826 39047065 78094130 4788724242187 9577448484374 23943621210935 47887242421870