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20200211312 = 241498473243
BaseRepresentation
bin10010110100000001…
…101100001101110000
31221010210021001112112
4102310001230031300
5312332223230222
613140240344452
71313402651231
oct226401541560
957123231475
1020200211312
118626546816
123ab9015128
131b9c007178
14d98b21088
157d3617be2
hex4b406c370

20200211312 has 20 divisors (see below), whose sum is σ = 39400584600. Its totient is φ = 10032318528.

The previous prime is 20200211299. The next prime is 20200211327. The reversal of 20200211312 is 21311200202.

It is a happy number.

It is a super-2 number, since 2×202002113122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234238 + ... + 4239005.

It is an arithmetic number, because the mean of its divisors is an integer number (1970029230).

Almost surely, 220200211312 is an apocalyptic number.

It is an amenable number.

20200211312 is a deficient number, since it is larger than the sum of its proper divisors (19200373288).

20200211312 is a wasteful number, since it uses less digits than its factorization.

20200211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473400 (or 8473394 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20200211312 its reverse (21311200202), we get a palindrome (41511411514).

The spelling of 20200211312 in words is "twenty billion, two hundred million, two hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 149 298 596 1192 2384 8473243 16946486 33892972 67785944 135571888 1262513207 2525026414 5050052828 10100105656 20200211312