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1031242043 = 131919121859
BaseRepresentation
bin111101011101111…
…000000100111011
32122212110112010202
4331131320010323
54102444221133
6250155032415
734361261366
oct7535700473
92585415122
101031242043
1148a122457
1224943b70b
131358585c0
149ad610dd
15608032e8
hex3d77813b

1031242043 has 16 divisors (see below), whose sum is σ = 1175193600. Its totient is φ = 897052320.

The previous prime is 1031242031. The next prime is 1031242057. The reversal of 1031242043 is 3402421301.

It is not a de Polignac number, because 1031242043 - 212 = 1031237947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031242543) 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, 36248 + ... + 58106.

It is an arithmetic number, because the mean of its divisors is an integer number (73449600).

Almost surely, 21031242043 is an apocalyptic number.

1031242043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1031242043 is a deficient number, since it is larger than the sum of its proper divisors (143951557).

1031242043 is a wasteful number, since it uses less digits than its factorization.

1031242043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22082.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1031242043 is about 32112.9575561019. The cubic root of 1031242043 is about 1010.3074066724.

Adding to 1031242043 its reverse (3402421301), we get a palindrome (4433663344).

The spelling of 1031242043 in words is "one billion, thirty-one million, two hundred forty-two thousand, forty-three".

Divisors: 1 13 19 191 247 2483 3629 21859 47177 284167 415321 4175069 5399173 54275897 79326311 1031242043