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1030111031 = 59148111789
BaseRepresentation
bin111101011001100…
…011111100110111
32122210100001200102
4331121203330313
54102202023111
6250114504315
734345541105
oct7531437467
92583301612
101030111031
1148951a734
12248b9509b
13135550871
149ab48c75
156067d13b
hex3d663f37

1030111031 has 8 divisors (see below), whose sum is σ = 1048366800. Its totient is φ = 1011881920.

The previous prime is 1030111007. The next prime is 1030111037. The reversal of 1030111031 is 1301110301.

It is a happy number.

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 1030111031 - 226 = 963002167 is a prime.

It is a super-2 number, since 2×10301110312 = 2122257472375765922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030111037) 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, 81485 + ... + 93273.

It is an arithmetic number, because the mean of its divisors is an integer number (131045850).

Almost surely, 21030111031 is an apocalyptic number.

1030111031 is a deficient number, since it is larger than the sum of its proper divisors (18255769).

1030111031 is a wasteful number, since it uses less digits than its factorization.

1030111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13329.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1030111031 is about 32095.3428241544. The cubic root of 1030111031 is about 1009.9379208977.

Adding to 1030111031 its reverse (1301110301), we get a palindrome (2331221332).

The spelling of 1030111031 in words is "one billion, thirty million, one hundred eleven thousand, thirty-one".

Divisors: 1 59 1481 11789 87379 695551 17459509 1030111031