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1022440013 = 7534436221
BaseRepresentation
bin111100111100010…
…011001001001101
32122020220100000122
4330330103021031
54043221040023
6245242234325
734223411450
oct7474231115
92566810018
101022440013
11485160351
122464b59a5
13133a960ba
1499b0d497
155eb652c8
hex3cf1324d

1022440013 has 16 divisors (see below), whose sum is σ = 1193429376. Its totient is φ = 857762880.

The previous prime is 1022439991. The next prime is 1022440019. The reversal of 1022440013 is 3100442201.

It is a cyclic number.

It is not a de Polignac number, because 1022440013 - 224 = 1005662797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1022439973 and 1022440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022440019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161243 + ... + 167463.

It is an arithmetic number, because the mean of its divisors is an integer number (74589336).

Almost surely, 21022440013 is an apocalyptic number.

It is an amenable number.

1022440013 is a deficient number, since it is larger than the sum of its proper divisors (170989363).

1022440013 is an equidigital number, since it uses as much as digits as its factorization.

1022440013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1022440013 is about 31975.6159127545. The cubic root of 1022440013 is about 1007.4247411186.

Adding to 1022440013 its reverse (3100442201), we get a palindrome (4122882214).

The spelling of 1022440013 in words is "one billion, twenty-two million, four hundred forty thousand, thirteen".

Divisors: 1 7 53 371 443 3101 6221 23479 43547 164353 329713 2307991 2755903 19291321 146062859 1022440013