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7620420227 = 74421246241
BaseRepresentation
bin1110001100011011…
…00110001010000011
3201200002011110100012
413012031212022003
5111101311421402
63300100015135
7356561334410
oct70615461203
921602143305
107620420227
11326058a562
1215880914ab
13945a012c4
145240db107
152e901c452
hex1c6366283

7620420227 has 8 divisors (see below), whose sum is σ = 8711056992. Its totient is φ = 6530284800.

The previous prime is 7620420167. The next prime is 7620420239. The reversal of 7620420227 is 7220240267.

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 7620420227 - 212 = 7620416131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7620420193 and 7620420202.

It is not an unprimeable number, because it can be changed into a prime (7620420127) 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, 92174 + ... + 154067.

It is an arithmetic number, because the mean of its divisors is an integer number (1088882124).

Almost surely, 27620420227 is an apocalyptic number.

7620420227 is a deficient number, since it is larger than the sum of its proper divisors (1090636765).

7620420227 is a wasteful number, since it uses less digits than its factorization.

7620420227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250669.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 7620420227 is about 87295.0183401092. The cubic root of 7620420227 is about 1967.8544522258.

The spelling of 7620420227 in words is "seven billion, six hundred twenty million, four hundred twenty thousand, two hundred twenty-seven".

Divisors: 1 7 4421 30947 246241 1723687 1088631461 7620420227