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2216157057 = 33671225073
BaseRepresentation
bin1000010000010111…
…1101111110000001
312201110002102222000
42010011331332001
514014314011212
61003523534213
7105630011202
oct20405757601
95643072860
102216157057
11a37a65664
1251a22a369
1329419a84a
141704855a9
15ce85e1dc
hex8417df81

2216157057 has 16 divisors (see below), whose sum is σ = 3332201280. Its totient is φ = 1455385536.

The previous prime is 2216157037. The next prime is 2216157067. The reversal of 2216157057 is 7507516122.

2216157057 is a `hidden beast` number, since 2 + 21 + 61 + 570 + 5 + 7 = 666.

It is not a de Polignac number, because 2216157057 - 223 = 2207768449 is a prime.

It is a super-2 number, since 2×22161570572 = 9822704202581802498, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2216157037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610728 + ... + 614345.

It is an arithmetic number, because the mean of its divisors is an integer number (208262580).

Almost surely, 22216157057 is an apocalyptic number.

2216157057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2216157057 is a deficient number, since it is larger than the sum of its proper divisors (1116044223).

2216157057 is a wasteful number, since it uses less digits than its factorization.

2216157057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225149 (or 1225143 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 2216157057 is about 47076.0773323352. The cubic root of 2216157057 is about 1303.7675826964.

The spelling of 2216157057 in words is "two billion, two hundred sixteen million, one hundred fifty-seven thousand, fifty-seven".

Divisors: 1 3 9 27 67 201 603 1809 1225073 3675219 11025657 33076971 82079891 246239673 738719019 2216157057