Search a number
-
+
1030202101 = 1795755319
BaseRepresentation
bin111101011001111…
…010001011110101
32122210111200121101
4331121322023311
54102212431401
6250120450101
734346400445
oct7531721365
92583450541
101030202101
114895820a5
12249019931
13135583156
149ab70125
156069a101
hex3d67a2f5

1030202101 has 4 divisors (see below), whose sum is σ = 1035957600. Its totient is φ = 1024446604.

The previous prime is 1030202087. The next prime is 1030202111. The reversal of 1030202101 is 1012020301.

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: 1012020301 = 2437415273.

It is a cyclic number.

It is not a de Polignac number, because 1030202101 - 27 = 1030201973 is a prime.

It is a super-2 number, since 2×10302021012 = 2122632737809628402, 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 (1030202111) 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, 2877481 + ... + 2877838.

It is an arithmetic number, because the mean of its divisors is an integer number (258989400).

Almost surely, 21030202101 is an apocalyptic number.

It is an amenable number.

1030202101 is a deficient number, since it is larger than the sum of its proper divisors (5755499).

1030202101 is an equidigital number, since it uses as much as digits as its factorization.

1030202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755498.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1030202101 is about 32096.7615344601. The cubic root of 1030202101 is about 1009.9676821996.

Adding to 1030202101 its reverse (1012020301), we get a palindrome (2042222402).

The spelling of 1030202101 in words is "one billion, thirty million, two hundred two thousand, one hundred one".

Divisors: 1 179 5755319 1030202101