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1022430442 = 21164372277
BaseRepresentation
bin111100111100010…
…000110011101010
32122020212211220011
4330330100303222
54043220233232
6245242122134
734223341525
oct7474206352
92566784804
101022430442
11485154140
122464b034a
13133a91937
1499b09bbc
155eb62547
hex3cf10cea

1022430442 has 16 divisors (see below), whose sum is σ = 1675693152. Its totient is φ = 464011920.

The previous prime is 1022430397. The next prime is 1022430443. The reversal of 1022430442 is 2440342201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1022430443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21993 + ... + 50284.

It is an arithmetic number, because the mean of its divisors is an integer number (104730822).

Almost surely, 21022430442 is an apocalyptic number.

1022430442 is a deficient number, since it is larger than the sum of its proper divisors (653262710).

1022430442 is a wasteful number, since it uses less digits than its factorization.

1022430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72933.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1022430442 is about 31975.4662514872. The cubic root of 1022430442 is about 1007.4215976278.

Adding to 1022430442 its reverse (2440342201), we get a palindrome (3462772643).

The spelling of 1022430442 in words is "one billion, twenty-two million, four hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 11 22 643 1286 7073 14146 72277 144554 795047 1590094 46474111 92948222 511215221 1022430442