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30713507216 = 2471978631613
BaseRepresentation
bin11100100110101010…
…101110110110010000
32221021110212211021022
4130212222232312100
51000400124212331
622035401015012
72135052334550
oct344652566620
987243784238
1030713507216
1112030a79617
125b51a84468
132b86153512
1416b50db160
15beb5b867b
hex726aaed90

30713507216 has 80 divisors (see below), whose sum is σ = 68475331584. Its totient is φ = 13072829952.

The previous prime is 30713507197. The next prime is 30713507233. The reversal of 30713507216 is 61270531703.

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, 19040426 + ... + 19042038.

Almost surely, 230713507216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30713507216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34237665792).

30713507216 is an abundant number, since it is smaller than the sum of its proper divisors (37761824368).

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

30713507216 is a wasteful number, since it uses less digits than its factorization.

30713507216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688 (or 2682 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The spelling of 30713507216 in words is "thirty billion, seven hundred thirteen million, five hundred seven thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 16 28 56 112 197 394 788 863 1379 1576 1613 1726 2758 3152 3226 3452 5516 6041 6452 6904 11032 11291 12082 12904 13808 22064 22582 24164 25808 45164 48328 90328 96656 170011 180656 317761 340022 635522 680044 1190077 1271044 1360088 1392019 2224327 2380154 2542088 2720176 2784038 4448654 4760308 5084176 5568076 8897308 9520616 9744133 11136152 17794616 19041232 19488266 22272304 35589232 38976532 77953064 155906128 274227743 548455486 1096910972 1919594201 2193821944 3839188402 4387643888 7678376804 15356753608 30713507216