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1031102001 = 3338188963
BaseRepresentation
bin111101011101010…
…101111000110001
32122212012102001000
4331131111320301
54102430231001
6250152032213
734360136166
oct7535257061
92585172030
101031102001
1148a037216
12249392669
13135809937
149ad2606d
15607c6a86
hex3d755e31

1031102001 has 8 divisors (see below), whose sum is σ = 1527558560. Its totient is φ = 687401316.

The previous prime is 1031101999. The next prime is 1031102063. The reversal of 1031102001 is 1002011301.

It is not a de Polignac number, because 1031102001 - 21 = 1031101999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031182001) 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, 19094455 + ... + 19094508.

It is an arithmetic number, because the mean of its divisors is an integer number (190944820).

Almost surely, 21031102001 is an apocalyptic number.

It is an amenable number.

1031102001 is a deficient number, since it is larger than the sum of its proper divisors (496456559).

1031102001 is an equidigital number, since it uses as much as digits as its factorization.

1031102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38188972 (or 38188966 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1031102001 is about 32110.7770226757. Note that the first 3 decimals coincide. The cubic root of 1031102001 is about 1010.2616715720.

Adding to 1031102001 its reverse (1002011301), we get a palindrome (2033113302).

It can be divided in two parts, 103110 and 2001, that added together give a triangular number (105111 = T458).

The spelling of 1031102001 in words is "one billion, thirty-one million, one hundred two thousand, one".

Divisors: 1 3 9 27 38188963 114566889 343700667 1031102001