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47987944000 = 26538372271
BaseRepresentation
bin101100101100010011…
…011110101001000000
311120212100210010200021
4230230103132221000
51241234403202000
634013444103224
73316120536163
oct545423365100
9146770703607
1047987944000
1119395a41657
129373094b14
1346a9c64049
142473417ada
1513ace0011a
hexb2c4dea40

47987944000 has 112 divisors (see below), whose sum is σ = 120275640576. Its totient is φ = 18963648000.

The previous prime is 47987943967. The next prime is 47987944079. The reversal of 47987944000 is 44978974.

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, 627865 + ... + 700135.

It is an arithmetic number, because the mean of its divisors is an integer number (1073889648).

Almost surely, 247987944000 is an apocalyptic number.

47987944000 is a gapful number since it is divisible by the number (40) 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 47987944000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60137820288).

47987944000 is an abundant number, since it is smaller than the sum of its proper divisors (72287696576).

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

47987944000 is an equidigital number, since it uses as much as digits as its factorization.

47987944000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72381 (or 72361 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 47987944000 in words is "forty-seven billion, nine hundred eighty-seven million, nine hundred forty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 83 100 125 160 166 200 250 320 332 400 415 500 664 800 830 1000 1328 1600 1660 2000 2075 2656 3320 4000 4150 5312 6640 8000 8300 10375 13280 16600 20750 26560 33200 41500 66400 72271 83000 132800 144542 166000 289084 332000 361355 578168 664000 722710 1156336 1445420 1806775 2312672 2890840 3613550 4625344 5781680 5998493 7227100 9033875 11563360 11996986 14454200 18067750 23126720 23993972 28908400 29992465 36135500 47987944 57816800 59984930 72271000 95975888 115633600 119969860 144542000 149962325 191951776 239939720 289084000 299924650 383903552 479879440 578168000 599849300 749811625 959758880 1199698600 1499623250 1919517760 2399397200 2999246500 4798794400 5998493000 9597588800 11996986000 23993972000 47987944000