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1022111013 = 371131142733
BaseRepresentation
bin111100111011000…
…010110100100101
32122020021121201110
4330323002310211
54043130023023
6245231215233
734220541330
oct7473026445
92566247643
101022111013
11484a56150
12246377519
131339ac421
1499a65617
155eaeca93
hex3cec2d25

1022111013 has 32 divisors (see below), whose sum is σ = 1753915392. Its totient is φ = 513835200.

The previous prime is 1022110993. The next prime is 1022111047. The reversal of 1022111013 is 3101112201.

It is not a de Polignac number, because 1022111013 - 26 = 1022110949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022111013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022113013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64206 + ... + 78527.

It is an arithmetic number, because the mean of its divisors is an integer number (54809856).

Almost surely, 21022111013 is an apocalyptic number.

It is an amenable number.

1022111013 is a deficient number, since it is larger than the sum of its proper divisors (731804379).

1022111013 is a wasteful number, since it uses less digits than its factorization.

1022111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142785.

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

The square root of 1022111013 is about 31970.4709536785. The cubic root of 1022111013 is about 1007.3166733942.

Adding to 1022111013 its reverse (3101112201), we get a palindrome (4123223214).

The spelling of 1022111013 in words is "one billion, twenty-two million, one hundred eleven thousand, thirteen".

Divisors: 1 3 7 11 21 31 33 77 93 217 231 341 651 1023 2387 7161 142733 428199 999131 1570063 2997393 4424723 4710189 10990441 13274169 30973061 32971323 48671953 92919183 146015859 340703671 1022111013