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87554574016 = 2671315199559
BaseRepresentation
bin101000110001010101…
…0001100011011000000
322100222211101012022121
41101202222030123000
52413302432332031
6104115542214024
76216453412510
oct1214252143300
9270884335277
1087554574016
113414a302388
1214b75a24314
1383442c0160
144348215840
152426831011
hex1462a8c6c0

87554574016 has 112 divisors (see below), whose sum is σ = 215253498880. Its totient is φ = 34407244800.

The previous prime is 87554573971. The next prime is 87554574067. The reversal of 87554574016 is 61047545578.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×875545740162 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 829645 + ... + 929203.

It is an arithmetic number, because the mean of its divisors is an integer number (1921906240).

Almost surely, 287554574016 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 87554574016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107626749440).

87554574016 is an abundant number, since it is smaller than the sum of its proper divisors (127698924864).

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

87554574016 is a wasteful number, since it uses less digits than its factorization.

87554574016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99742 (or 99732 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 87554574016 in words is "eighty-seven billion, five hundred fifty-four million, five hundred seventy-four thousand, sixteen".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 151 182 208 224 302 364 416 448 604 728 832 1057 1208 1456 1963 2114 2416 2912 3926 4228 4832 5824 7852 8456 9664 13741 15704 16912 27482 31408 33824 54964 62816 67648 99559 109928 125632 199118 219856 398236 439712 696913 796472 879424 1294267 1393826 1592944 2588534 2787652 3185888 5177068 5575304 6371776 9059869 10354136 11150608 15033409 18119738 20708272 22301216 30066818 36239476 41416544 44602432 60133636 72478952 82833088 105233863 120267272 144957904 195434317 210467726 240534544 289915808 390868634 420935452 481069088 579831616 781737268 841870904 962138176 1368040219 1563474536 1683741808 2736080438 3126949072 3367483616 5472160876 6253898144 6734967232 10944321752 12507796288 21888643504 43777287008 87554574016