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1948744433141 = 111134073384919
BaseRepresentation
bin11100010110111010001…
…110000011110111110101
320220022001100110021101222
4130112322032003313311
5223412012033330031
64051124004200125
7260535463242362
oct34267216036765
96808040407358
101948744433141
11691504479880
1227581a699045
131119c5645c9c
146a4694c7469
1535a582c2e7b
hex1c5ba383df5

1948744433141 has 16 divisors (see below), whose sum is σ = 2145248461440. Its totient is φ = 1755472427520.

The previous prime is 1948744433087. The next prime is 1948744433147. The reversal of 1948744433141 is 1413344478491.

It is a cyclic number.

It is not a de Polignac number, because 1948744433141 - 238 = 1673866526197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948744433147) 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, 4870280 + ... + 5255198.

It is an arithmetic number, because the mean of its divisors is an integer number (134078028840).

Almost surely, 21948744433141 is an apocalyptic number.

1948744433141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1948744433141 is a deficient number, since it is larger than the sum of its proper divisors (196504028299).

1948744433141 is a wasteful number, since it uses less digits than its factorization.

1948744433141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389116.

The product of its digits is 4644864, while the sum is 53.

The spelling of 1948744433141 in words is "one trillion, nine hundred forty-eight billion, seven hundred forty-four million, four hundred thirty-three thousand, one hundred forty-one".

Divisors: 1 11 113 1243 4073 44803 384919 460249 4234109 5062739 43495847 478454317 1567775087 17245525957 177158584831 1948744433141