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201230210312 = 231193125916747
BaseRepresentation
bin1011101101101001000…
…0010101010100001000
3201020102002010211210022
42323122100111110020
511244104413212222
6232235513440012
720352446364665
oct2733220252410
9636362124708
10201230210312
117838323143a
1232bbb710008
1315c8c160281
149a4d636a6c
15537b47b042
hex2eda415508

201230210312 has 32 divisors (see below), whose sum is σ = 377945416800. Its totient is φ = 100444919424.

The previous prime is 201230210303. The next prime is 201230210323. The reversal of 201230210312 is 213012032102.

It is a super-2 number, since 2×2012302103122 (a number of 23 digits) contains 22 as substring.

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, 12007523 + ... + 12024269.

It is an arithmetic number, because the mean of its divisors is an integer number (11810794275).

Almost surely, 2201230210312 is an apocalyptic number.

It is an amenable number.

201230210312 is a deficient number, since it is larger than the sum of its proper divisors (176715206488).

201230210312 is a wasteful number, since it uses less digits than its factorization.

201230210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19205 (or 19201 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201230210312 its reverse (213012032102), we get a palindrome (414242242414).

The spelling of 201230210312 in words is "two hundred one billion, two hundred thirty million, two hundred ten thousand, three hundred twelve".

Divisors: 1 2 4 8 1193 1259 2386 2518 4772 5036 9544 10072 16747 33494 66988 133976 1501987 3003974 6007948 12015896 19979171 21084473 39958342 42168946 79916684 84337892 159833368 168675784 25153776289 50307552578 100615105156 201230210312