Search a number
-
+
1021102201 = 71391049437
BaseRepresentation
bin111100110111001…
…100100001111001
32122011101100220001
4330313030201321
54042400232301
6245153433001
734206140230
oct7467144171
92564340801
101021102201
11484427219
12245b6b761
131337181b2
1499881b17
155e99dc01
hex3cdcc879

1021102201 has 8 divisors (see below), whose sum is σ = 1175370560. Its totient is φ = 868933008.

The previous prime is 1021102193. The next prime is 1021102259. The reversal of 1021102201 is 1022011201.

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 1021102201 - 23 = 1021102193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021102261) 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, 523746 + ... + 525691.

It is an arithmetic number, because the mean of its divisors is an integer number (146921320).

Almost surely, 21021102201 is an apocalyptic number.

It is an amenable number.

1021102201 is a deficient number, since it is larger than the sum of its proper divisors (154268359).

1021102201 is a wasteful number, since it uses less digits than its factorization.

1021102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049583.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021102201 is about 31954.6898122952. The cubic root of 1021102201 is about 1006.9851609192.

Adding to 1021102201 its reverse (1022011201), we get a palindrome (2043113402).

The spelling of 1021102201 in words is "one billion, twenty-one million, one hundred two thousand, two hundred one".

Divisors: 1 7 139 973 1049437 7346059 145871743 1021102201