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20560046248 = 2372918676781
BaseRepresentation
bin10011001001011110…
…010110100010101000
31222001212100120021101
4103021132112202220
5314101332434443
613240053051144
71325332336540
oct231136264250
958055316241
1020560046248
1187a0679065
123b99626ab4
131c28724a51
14dd082c320
15804ee584d
hex4c97968a8

20560046248 has 64 divisors (see below), whose sum is σ = 45607593600. Its totient is φ = 8501794560.

The previous prime is 20560046209. The next prime is 20560046261. The reversal of 20560046248 is 84264006502.

It is a super-3 number, since 3×205600462483 (a number of 32 digits) contains 333 as substring.

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, 3028618 + ... + 3035398.

It is an arithmetic number, because the mean of its divisors is an integer number (712618650).

Almost surely, 220560046248 is an apocalyptic number.

20560046248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20560046248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22803796800).

20560046248 is an abundant number, since it is smaller than the sum of its proper divisors (25047547352).

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

20560046248 is a wasteful number, since it uses less digits than its factorization.

20560046248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 20560046248 in words is "twenty billion, five hundred sixty million, forty-six thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 1867 3734 6781 7468 13069 13562 14936 26138 27124 47467 52276 54143 54248 94934 104552 108286 189868 196649 216572 379001 379736 393298 433144 758002 786596 1376543 1516004 1573192 2753086 3032008 5506172 11012344 12660127 25320254 50640508 88620889 101281016 177241778 354483556 367143683 708967112 734287366 1468574732 2570005781 2937149464 5140011562 10280023124 20560046248