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47705231140 = 2257437924457
BaseRepresentation
bin101100011011011101…
…000000111100100100
311120010122210211112121
4230123131000330210
51240200014344030
633525424355324
73306115526350
oct543335007444
9146118724477
1047705231140
11192603a5266
1292b4475b44
134663509928
142447a64460
1513931a847a
hexb1b740f24

47705231140 has 48 divisors (see below), whose sum is σ = 117155187072. Its totient is φ = 15975703296.

The previous prime is 47705231129. The next prime is 47705231191. The reversal of 47705231140 is 4113250774.

It is a junction number, because it is equal to n+sod(n) for n = 47705231096 and 47705231105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3956209 + ... + 3968248.

It is an arithmetic number, because the mean of its divisors is an integer number (2440733064).

Almost surely, 247705231140 is an apocalyptic number.

It is an amenable number.

47705231140 is an abundant number, since it is smaller than the sum of its proper divisors (69449955932).

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

47705231140 is a wasteful number, since it uses less digits than its factorization.

47705231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924516 (or 7924514 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 47705231140 in words is "forty-seven billion, seven hundred five million, two hundred thirty-one thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 7924457 15848914 31697828 39622285 55471199 79244570 110942398 158489140 221884796 277355995 340751651 554711990 681503302 1109423980 1363006604 1703758255 2385261557 3407516510 4770523114 6815033020 9541046228 11926307785 23852615570 47705231140