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1031311241 = 19211257249
BaseRepresentation
bin111101011110001…
…000111110001001
32122212121001001122
4331132020332021
54103003424431
6250200325025
734362000212
oct7536107611
92585531048
101031311241
1148a16a444
12249473775
13135880c4c
149ad7c409
1560818a7b
hex3d788f89

1031311241 has 8 divisors (see below), whose sum is σ = 1090740000. Its totient is φ = 972397440.

The previous prime is 1031311231. The next prime is 1031311277. The reversal of 1031311241 is 1421131301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031311241 - 226 = 964202377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031311231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124616 + ... + 132633.

It is an arithmetic number, because the mean of its divisors is an integer number (136342500).

Almost surely, 21031311241 is an apocalyptic number.

It is an amenable number.

1031311241 is a deficient number, since it is larger than the sum of its proper divisors (59428759).

1031311241 is a wasteful number, since it uses less digits than its factorization.

1031311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257479.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1031311241 is about 32114.0349535838. The cubic root of 1031311241 is about 1010.3300039177.

Adding to 1031311241 its reverse (1421131301), we get a palindrome (2452442542).

The spelling of 1031311241 in words is "one billion, thirty-one million, three hundred eleven thousand, two hundred forty-one".

Divisors: 1 19 211 4009 257249 4887731 54279539 1031311241