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1022421311 = 1397355549
BaseRepresentation
bin111100111100001…
…110100100111111
32122020212101100222
4330330032210333
54043214440221
6245242011555
734223303102
oct7474164477
92566771328
101022421311
1148514829a
122464a6bbb
13133a8a732
1499b06739
155eb5e9ab
hex3cf0e93f

1022421311 has 4 divisors (see below), whose sum is σ = 1029777000. Its totient is φ = 1015065624.

The previous prime is 1022421299. The next prime is 1022421317. The reversal of 1022421311 is 1131242201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1022421311 - 218 = 1022159167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022421311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022421317) 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, 3677636 + ... + 3677913.

It is an arithmetic number, because the mean of its divisors is an integer number (257444250).

Almost surely, 21022421311 is an apocalyptic number.

1022421311 is a deficient number, since it is larger than the sum of its proper divisors (7355689).

1022421311 is an equidigital number, since it uses as much as digits as its factorization.

1022421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355688.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1022421311 is about 31975.3234698259. The cubic root of 1022421311 is about 1007.4185986320.

Adding to 1022421311 its reverse (1131242201), we get a palindrome (2153663512).

The spelling of 1022421311 in words is "one billion, twenty-two million, four hundred twenty-one thousand, three hundred eleven".

Divisors: 1 139 7355549 1022421311