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201231200230 = 25157910914071
BaseRepresentation
bin1011101101101001010…
…0000110111111100110
3201020102011000010200221
42323122110012333212
511244110141401410
6232235550554554
720352460660024
oct2733224067746
9636364003627
10201231200230
1178383848155
1232bbbb08a5a
1315c8c418a18
149a4d813714
15537b5c44da
hex2eda506fe6

201231200230 has 32 divisors (see below), whose sum is σ = 364589196480. Its totient is φ = 79965325440.

The previous prime is 201231200207. The next prime is 201231200243. The reversal of 201231200230 is 32002132102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14294095 + ... + 14308165.

It is an arithmetic number, because the mean of its divisors is an integer number (11393412390).

Almost surely, 2201231200230 is an apocalyptic number.

201231200230 is a deficient number, since it is larger than the sum of its proper divisors (163357996250).

201231200230 is a wasteful number, since it uses less digits than its factorization.

201231200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201231200230 its reverse (32002132102), we get a palindrome (233233332332).

The spelling of 201231200230 in words is "two hundred one billion, two hundred thirty-one million, two hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 9109 14071 18218 28142 45545 70355 91090 140710 1430113 2209147 2860226 4418294 7150565 11045735 14301130 22091470 128172739 256345478 640863695 1281727390 20123120023 40246240046 100615600115 201231200230