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5561100560 = 245437122769
BaseRepresentation
bin1010010110111011…
…11010100100010000
3112100120012011211102
411023131322210100
542342120204220
62315453403532
7254544401111
oct51335724420
915316164742
105561100560
1123a4107184
1210b24995a8
136a8187862
143aa800208
1522833d775
hex14b77a910

5561100560 has 80 divisors (see below), whose sum is σ = 13417176960. Its totient is φ = 2142013440.

The previous prime is 5561100551. The next prime is 5561100569. The reversal of 5561100560 is 650011655.

It is an interprime number because it is at equal distance from previous prime (5561100551) and next prime (5561100569).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (5561100569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232856 + ... + 255624.

It is an arithmetic number, because the mean of its divisors is an integer number (167714712).

Almost surely, 25561100560 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 5561100560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6708588480).

5561100560 is an abundant number, since it is smaller than the sum of its proper divisors (7856076400).

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

5561100560 is a wasteful number, since it uses less digits than its factorization.

5561100560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22896 (or 22890 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 5561100560 is about 74572.7869936480. The cubic root of 5561100560 is about 1771.6866640200.

The spelling of 5561100560 in words is "five billion, five hundred sixty-one million, one hundred thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 43 71 80 86 142 172 215 284 344 355 430 568 688 710 860 1136 1420 1720 2840 3053 3440 5680 6106 12212 15265 22769 24424 30530 45538 48848 61060 91076 113845 122120 182152 227690 244240 364304 455380 910760 979067 1616599 1821520 1958134 3233198 3916268 4895335 6466396 7832536 8082995 9790670 12932792 15665072 16165990 19581340 25865584 32331980 39162680 64663960 69513757 78325360 129327920 139027514 278055028 347568785 556110056 695137570 1112220112 1390275140 2780550280 5561100560