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1031102401 = 7147300343
BaseRepresentation
bin111101011101010…
…101111111000001
32122212012102120211
4331131111333001
54102430234101
6250152034121
734360140310
oct7535257701
92585172524
101031102401
1148a03754a
12249392941
13135809b84
149ad26277
15607c6c51
hex3d755fc1

1031102401 has 4 divisors (see below), whose sum is σ = 1178402752. Its totient is φ = 883802052.

The previous prime is 1031102383. The next prime is 1031102437. The reversal of 1031102401 is 1042011301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1042011301 = 4992088199.

It is not a de Polignac number, because 1031102401 - 29 = 1031101889 is a prime.

It is a super-2 number, since 2×10311024012 = 2126344322695929602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031100401) 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 3 ways as a sum of consecutive naturals, for example, 73650165 + ... + 73650178.

It is an arithmetic number, because the mean of its divisors is an integer number (294600688).

Almost surely, 21031102401 is an apocalyptic number.

It is an amenable number.

1031102401 is a deficient number, since it is larger than the sum of its proper divisors (147300351).

1031102401 is an equidigital number, since it uses as much as digits as its factorization.

1031102401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147300350.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1031102401 is about 32110.7832511136. The cubic root of 1031102401 is about 1010.2618022105.

Adding to 1031102401 its reverse (1042011301), we get a palindrome (2073113702).

The spelling of 1031102401 in words is "one billion, thirty-one million, one hundred two thousand, four hundred one".

Divisors: 1 7 147300343 1031102401