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2148066808 = 235915130139
BaseRepresentation
bin1000000000001000…
…1110010111111000
312112200222002200221
42000002032113320
513344401114213
6553052305424
7104142160306
oct20002162770
95480862627
102148066808
11a02589428
124bb472274
1328304a364
141653dd276
15c88ae38d
hex8008e5f8

2148066808 has 32 divisors (see below), whose sum is σ = 4123152000. Its totient is φ = 1048802400.

The previous prime is 2148066797. The next prime is 2148066821. The reversal of 2148066808 is 8086608412.

It is a super-2 number, since 2×21480668082 = 9228382023262617728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56203 + ... + 86341.

It is an arithmetic number, because the mean of its divisors is an integer number (128848500).

Almost surely, 22148066808 is an apocalyptic number.

It is an amenable number.

2148066808 is a deficient number, since it is larger than the sum of its proper divisors (1975085192).

2148066808 is a wasteful number, since it uses less digits than its factorization.

2148066808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30355 (or 30351 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 2148066808 is about 46347.2416439209. The cubic root of 2148066808 is about 1290.2759275950.

It can be divided in two parts, 21480 and 66808, that added together give a palindrome (88288).

The spelling of 2148066808 in words is "two billion, one hundred forty-eight million, sixty-six thousand, eight hundred eight".

Divisors: 1 2 4 8 59 118 151 236 302 472 604 1208 8909 17818 30139 35636 60278 71272 120556 241112 1778201 3556402 4550989 7112804 9101978 14225608 18203956 36407912 268508351 537016702 1074033404 2148066808