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1022444031 = 3748687811
BaseRepresentation
bin111100111100010…
…100000111111111
32122020220112112110
4330330110013333
54043221202111
6245242305103
734223426250
oct7474240777
92566815473
101022444031
11485163374
122464b8193
13133a97b8b
1499b10b27
155eb665a6
hex3cf141ff

1022444031 has 8 divisors (see below), whose sum is σ = 1558009984. Its totient is φ = 584253720.

The previous prime is 1022444029. The next prime is 1022444057. The reversal of 1022444031 is 1304442201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1022444031 - 21 = 1022444029 is a prime.

It is a super-2 number, since 2×10224440312 = 2090783593055057922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 48687811 = 1022444031 / (1 + 0 + 2 + 2 + 4 + 4 + 4 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022443989 and 1022444007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022444081) 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 7 ways as a sum of consecutive naturals, for example, 24343885 + ... + 24343926.

It is an arithmetic number, because the mean of its divisors is an integer number (194751248).

Almost surely, 21022444031 is an apocalyptic number.

1022444031 is a deficient number, since it is larger than the sum of its proper divisors (535565953).

1022444031 is an equidigital number, since it uses as much as digits as its factorization.

1022444031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48687821.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1022444031 is about 31975.6787418188. The cubic root of 1022444031 is about 1007.4260607812.

Adding to 1022444031 its reverse (1304442201), we get a palindrome (2326886232).

The spelling of 1022444031 in words is "one billion, twenty-two million, four hundred forty-four thousand, thirty-one".

Divisors: 1 3 7 21 48687811 146063433 340814677 1022444031