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47028143280 = 2435316320987
BaseRepresentation
bin101011110011000110…
…001000010010110000
311111101110202012121110
4223303012020102300
51232303201041110
633334320153320
73253254423306
oct536306102260
9144343665543
1047028143280
1118a43185118
129145768840
134586160321
1423c1b72276
151353a0ea20
hexaf31884b0

47028143280 has 80 divisors (see below), whose sum is σ = 150490082304. Its totient is φ = 12136293120.

The previous prime is 47028143251. The next prime is 47028143317. The reversal of 47028143280 is 8234182074.

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

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, 3153054 + ... + 3167933.

Almost surely, 247028143280 is an apocalyptic number.

47028143280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47028143280 is an abundant number, since it is smaller than the sum of its proper divisors (103461939024).

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

47028143280 is a wasteful number, since it uses less digits than its factorization.

47028143280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321034 (or 6321028 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 47028143280 in words is "forty-seven billion, twenty-eight million, one hundred forty-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 620 744 930 1240 1488 1860 2480 3720 7440 6320987 12641974 18962961 25283948 31604935 37925922 50567896 63209870 75851844 94814805 101135792 126419740 151703688 189629610 195950597 252839480 303407376 379259220 391901194 505678960 587851791 758518440 783802388 979752985 1175703582 1517036880 1567604776 1959505970 2351407164 2939258955 3135209552 3919011940 4702814328 5878517910 7838023880 9405628656 11757035820 15676047760 23514071640 47028143280