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47888587140 = 2235798143119
BaseRepresentation
bin101100100110011000…
…011101100110000100
311120121102211021200120
4230212120131212010
51241033434242030
633555534341540
73313503163062
oct544630354604
9146542737616
1047888587140
111934494a349
12934595a8b0
1346924b71c4
142464153032
1513a4326010
hexb2661d984

47888587140 has 24 divisors (see below), whose sum is σ = 134088044160. Its totient is φ = 12770289888.

The previous prime is 47888587129. The next prime is 47888587163. The reversal of 47888587140 is 4178588874.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 798143119 = 47888587140 / (4 + 7 + 8 + 8 + 8 + 5 + 8 + 7 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399071500 + ... + 399071619.

It is an arithmetic number, because the mean of its divisors is an integer number (5587001840).

Almost surely, 247888587140 is an apocalyptic number.

It is an amenable number.

47888587140 is an abundant number, since it is smaller than the sum of its proper divisors (86199457020).

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

47888587140 is a wasteful number, since it uses less digits than its factorization.

47888587140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798143131 (or 798143129 counting only the distinct ones).

The product of its (nonzero) digits is 16056320, while the sum is 60.

The spelling of 47888587140 in words is "forty-seven billion, eight hundred eighty-eight million, five hundred eighty-seven thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 798143119 1596286238 2394429357 3192572476 3990715595 4788858714 7981431190 9577717428 11972146785 15962862380 23944293570 47888587140