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920202331 = 2347851251
BaseRepresentation
bin110110110110010…
…010110001011011
32101010112010021211
4312312102301123
53341032433311
6231151043551
731542406426
oct6666226133
92333463254
10920202331
114324806a4
122182105b7
1311884ac29
148a2d89bd
1555bbc821
hex36d92c5b

920202331 has 8 divisors (see below), whose sum is σ = 980642304. Its totient is φ = 861465000.

The previous prime is 920202329. The next prime is 920202389. The reversal of 920202331 is 133202029.

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

It is not a de Polignac number, because 920202331 - 21 = 920202329 is a prime.

It is a super-2 number, since 2×9202023312 = 1693544659955667122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920202301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424545 + ... + 426706.

It is an arithmetic number, because the mean of its divisors is an integer number (122580288).

Almost surely, 2920202331 is an apocalyptic number.

920202331 is a deficient number, since it is larger than the sum of its proper divisors (60439973).

920202331 is a wasteful number, since it uses less digits than its factorization.

920202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851321.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 920202331 is about 30334.8369206099. The cubic root of 920202331 is about 972.6601198586.

The spelling of 920202331 in words is "nine hundred twenty million, two hundred two thousand, three hundred thirty-one".

Divisors: 1 23 47 1081 851251 19578773 40008797 920202331