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1442215650 = 23529614771
BaseRepresentation
bin101010111110110…
…0111011011100010
310201111210010221110
41111331213123202
510423201400100
6355035404150
750511426231
oct12575473342
93644703843
101442215650
11680102a67
12342bb3656
1319ca3c955
14d9780b18
1586933250
hex55f676e2

1442215650 has 24 divisors (see below), whose sum is σ = 3576695184. Its totient is φ = 384590800.

The previous prime is 1442215613. The next prime is 1442215651. The reversal of 1442215650 is 565122441.

It is a super-2 number, since 2×14422156502 = 4159971962209845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1442215651) 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 11 ways as a sum of consecutive naturals, for example, 4807236 + ... + 4807535.

It is an arithmetic number, because the mean of its divisors is an integer number (149028966).

Almost surely, 21442215650 is an apocalyptic number.

1442215650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442215650 is an abundant number, since it is smaller than the sum of its proper divisors (2134479534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442215650 is a wasteful number, since it uses less digits than its factorization.

1442215650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9614786 (or 9614781 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1442215650 is about 37976.5144530142. The cubic root of 1442215650 is about 1129.8221063318.

The spelling of 1442215650 in words is "one billion, four hundred forty-two million, two hundred fifteen thousand, six hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 9614771 19229542 28844313 48073855 57688626 96147710 144221565 240369275 288443130 480738550 721107825 1442215650