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1442233442 = 21397571861
BaseRepresentation
bin101010111110110…
…1011110001100010
310201111211001100102
41111331223301202
510423202432232
6355040022402
750511532136
oct12575536142
93644731312
101442233442
11680115371
12343001a02
1319ca47a90
14d97873c6
1586938662
hex55f6bc62

1442233442 has 16 divisors (see below), whose sum is σ = 2353783992. Its totient is φ = 658782720.

The previous prime is 1442233427. The next prime is 1442233447. The reversal of 1442233442 is 2443322441.

It can be written as a sum of positive squares in 4 ways, for example, as 451180081 + 991053361 = 21241^2 + 31481^2 .

It is not an unprimeable number, because it can be changed into a prime (1442233447) 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, 283409 + ... + 288452.

Almost surely, 21442233442 is an apocalyptic number.

1442233442 is a deficient number, since it is larger than the sum of its proper divisors (911550550).

1442233442 is a wasteful number, since it uses less digits than its factorization.

1442233442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571973.

The product of its digits is 18432, while the sum is 29.

The square root of 1442233442 is about 37976.7487023310. The cubic root of 1442233442 is about 1129.8267523573.

Adding to 1442233442 its reverse (2443322441), we get a palindrome (3885555883).

The spelling of 1442233442 in words is "one billion, four hundred forty-two million, two hundred thirty-three thousand, four hundred forty-two".

Divisors: 1 2 13 26 97 194 1261 2522 571861 1143722 7434193 14868386 55470517 110941034 721116721 1442233442