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30471917757652 = 227531511114912197
BaseRepresentation
bin1101110110110110010111…
…10101010110010011010100
310222220002100100012202021201
412323123023311112103110
512443222441421221102
6144450334502322244
76263344346216110
oct673331365262324
9128802310182251
1030471917757652
11978908219a1a8
1235017b3729384
131400649605377
14774bc4b32740
1537c9a034c987
hex1bb6cbd564d4

30471917757652 has 96 divisors (see below), whose sum is σ = 62515667289600. Its totient is φ = 12725950348800.

The previous prime is 30471917757587. The next prime is 30471917757653. The reversal of 30471917757652 is 25675771917403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30471917757653) 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, 2498306418 + ... + 2498318614.

It is an arithmetic number, because the mean of its divisors is an integer number (651204867600).

Almost surely, 230471917757652 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 30471917757652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31257833644800).

30471917757652 is an abundant number, since it is smaller than the sum of its proper divisors (32043749531948).

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

30471917757652 is a wasteful number, since it uses less digits than its factorization.

30471917757652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23561 (or 23559 counting only the distinct ones).

The product of its (nonzero) digits is 77792400, while the sum is 64.

The spelling of 30471917757652 in words is "thirty trillion, four hundred seventy-one billion, nine hundred seventeen million, seven hundred fifty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 7 14 28 53 106 151 212 302 371 604 742 1057 1484 2114 4228 8003 11149 12197 16006 22298 24394 32012 44596 48788 56021 78043 85379 112042 156086 170758 224084 312172 341516 590897 646441 1181794 1292882 1683499 1841747 2363588 2585764 3366998 3683494 4136279 4525087 6733996 7366988 8272558 9050174 11784493 12892229 16545116 18100348 23568986 25784458 47137972 51568916 89225447 97612591 135984353 178450894 195225182 271968706 356901788 390450364 543937412 624578129 683288137 951890471 1249156258 1366576274 1903780942 2498312516 2733152548 3807561884 7207170709 14414341418 20533637303 28828682836 41067274606 50450194963 82134549212 100900389926 143735461121 201800779852 287470922242 574941844484 1088282777059 2176565554118 4353131108236 7617979439413 15235958878826 30471917757652