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20130130302 = 2331677122751
BaseRepresentation
bin10010101111110110…
…010110100101111110
31220221220101120110120
4102233312112211332
5312211303132202
613125254315410
71311562166352
oct225766264576
956856346416
1020130130302
11859aa2a927
123a99658b66
131b8a63a809
14d8d6bb462
157cc3c30bc
hex4afd9697e

20130130302 has 64 divisors (see below), whose sum is σ = 42775216128. Its totient is φ = 6306300000.

The previous prime is 20130130289. The next prime is 20130130303. The reversal of 20130130302 is 20303103102.

It is a super-2 number, since 2×201301303022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130130303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873427 + ... + 896177.

It is an arithmetic number, because the mean of its divisors is an integer number (668362752).

Almost surely, 220130130302 is an apocalyptic number.

20130130302 is an abundant number, since it is smaller than the sum of its proper divisors (22645085826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130130302 is a wasteful number, since it uses less digits than its factorization.

20130130302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22925.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20130130302 its reverse (20303103102), we get a palindrome (40433233404).

The spelling of 20130130302 in words is "twenty billion, one hundred thirty million, one hundred thirty thousand, three hundred two".

Divisors: 1 2 3 6 31 62 67 71 93 134 142 186 201 213 402 426 2077 2201 4154 4402 4757 6231 6603 9514 12462 13206 14271 22751 28542 45502 68253 136506 147467 294934 442401 705281 884802 1410562 1524317 1615321 2115843 3048634 3230642 4231686 4572951 4845963 9145902 9691926 47253827 50074951 94507654 100149902 108226507 141761481 150224853 216453014 283522962 300449706 324679521 649359042 3355021717 6710043434 10065065151 20130130302