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1020322331 = 7180180933
BaseRepresentation
bin111100110100001…
…110001000011011
32122002220202002222
4330310032020123
54042200303311
6245125014255
734166411450
oct7464161033
92562822088
101020322331
11483a442a6
1224585438b
13133504232
149971b827
155e897adb
hex3cd0e21b

1020322331 has 8 divisors (see below), whose sum is σ = 1166744544. Its totient is φ = 874065600.

The previous prime is 1020322319. The next prime is 1020322441. The reversal of 1020322331 is 1332230201.

1020322331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1020322331 - 226 = 953213467 is a prime.

It is a super-2 number, since 2×10203223312 = 2082115318274547122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020322531) 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, 27860 + ... + 53073.

It is an arithmetic number, because the mean of its divisors is an integer number (145843068).

Almost surely, 21020322331 is an apocalyptic number.

1020322331 is a deficient number, since it is larger than the sum of its proper divisors (146422213).

1020322331 is an equidigital number, since it uses as much as digits as its factorization.

1020322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82741.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1020322331 is about 31942.4847342845. The cubic root of 1020322331 is about 1006.7287329367.

Adding to 1020322331 its reverse (1332230201), we get a palindrome (2352552532).

The spelling of 1020322331 in words is "one billion, twenty million, three hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 7 1801 12607 80933 566531 145760333 1020322331