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6220420057 = 37539931139
BaseRepresentation
bin1011100101100010…
…00001001111011001
3121001111211002011001
411302301001033121
5100214411420212
62505125105001
7310101461305
oct56261011731
917044732131
106220420057
1127022a0725
121257258161
13781952737
144301c8d05
15266177657
hex172c413d9

6220420057 has 8 divisors (see below), whose sum is σ = 6389928000. Its totient is φ = 6050985264.

The previous prime is 6220420049. The next prime is 6220420079. The reversal of 6220420057 is 7500240226.

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 6220420057 - 23 = 6220420049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6220420457) 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, 184194 + ... + 215332.

It is an arithmetic number, because the mean of its divisors is an integer number (798741000).

Almost surely, 26220420057 is an apocalyptic number.

It is an amenable number.

6220420057 is a deficient number, since it is larger than the sum of its proper divisors (169507943).

6220420057 is a wasteful number, since it uses less digits than its factorization.

6220420057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36575.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 6220420057 is about 78869.6396403584. The cubic root of 6220420057 is about 1839.1051943504.

The spelling of 6220420057 in words is "six billion, two hundred twenty million, four hundred twenty thousand, fifty-seven".

Divisors: 1 37 5399 31139 199763 1152143 168119461 6220420057