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47389744560 = 2435892218621
BaseRepresentation
bin101100001000101001…
…100001110110110000
311112022200011110022110
4230020221201312300
51234023233311220
633434234405320
73265235116404
oct541051416660
9145280143273
1047389744560
1119109303554
129226890840
134613048b92
142417bbd104
15137563abe0
hexb08a61db0

47389744560 has 80 divisors (see below), whose sum is σ = 148558929120. Its totient is φ = 12495267840.

The previous prime is 47389744529. The next prime is 47389744601. The reversal of 47389744560 is 6544798374.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47389744560.

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, 1087951 + ... + 1130670.

It is an arithmetic number, because the mean of its divisors is an integer number (1856986614).

Almost surely, 247389744560 is an apocalyptic number.

47389744560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47389744560 is an abundant number, since it is smaller than the sum of its proper divisors (101169184560).

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

47389744560 is a wasteful number, since it uses less digits than its factorization.

47389744560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218726 (or 2218720 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 47389744560 in words is "forty-seven billion, three hundred eighty-nine million, seven hundred forty-four thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 89 120 178 240 267 356 445 534 712 890 1068 1335 1424 1780 2136 2670 3560 4272 5340 7120 10680 21360 2218621 4437242 6655863 8874484 11093105 13311726 17748968 22186210 26623452 33279315 35497936 44372420 53246904 66558630 88744840 106493808 133117260 177489680 197457269 266234520 394914538 532469040 592371807 789829076 987286345 1184743614 1579658152 1974572690 2369487228 2961859035 3159316304 3949145380 4738974456 5923718070 7898290760 9477948912 11847436140 15796581520 23694872280 47389744560