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1940882031 = 321119604869
BaseRepresentation
bin111001110101111…
…1000001001101111
312000021010000121200
41303223320021233
512433331211111
6520331500543
766045140124
oct16353701157
95007100550
101940882031
11906639440
12461bb7753
1324c148a0a
14145aaa74b
15b55d6256
hex73af826f

1940882031 has 12 divisors (see below), whose sum is σ = 3058359720. Its totient is φ = 1176292080.

The previous prime is 1940882029. The next prime is 1940882039. The reversal of 1940882031 is 1302880491.

It is not a de Polignac number, because 1940882031 - 21 = 1940882029 is a prime.

It is a super-2 number, since 2×19408820312 = 7534046116517369922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940882039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9802336 + ... + 9802533.

It is an arithmetic number, because the mean of its divisors is an integer number (254863310).

Almost surely, 21940882031 is an apocalyptic number.

1940882031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1940882031 is a deficient number, since it is larger than the sum of its proper divisors (1117477689).

1940882031 is a wasteful number, since it uses less digits than its factorization.

1940882031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19604886 (or 19604883 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1940882031 is about 44055.4426944050. The cubic root of 1940882031 is about 1247.3826901898.

The spelling of 1940882031 in words is "one billion, nine hundred forty million, eight hundred eighty-two thousand, thirty-one".

Divisors: 1 3 9 11 33 99 19604869 58814607 176443821 215653559 646960677 1940882031