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38871544481916 = 2237979643421483
BaseRepresentation
bin10001101011010011111001…
…00110011100100001111100
312002122002020202210011002120
420311221330212130201330
520043332410341410131
6214401201354122540
711121243052311036
oct1065517446344174
9162562222704076
1038871544481916
1111427369532193
124439695720450
13188c7563c2233
1498556db68c56
15476211026496
hex235a7c99c87c

38871544481916 has 48 divisors (see below), whose sum is σ = 90823705655424. Its totient is φ = 12939551349696.

The previous prime is 38871544481897. The next prime is 38871544481923. The reversal of 38871544481916 is 61918444517883.

It is a congruent number.

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, 92014911 + ... + 92436393.

It is an arithmetic number, because the mean of its divisors is an integer number (1892160534488).

Almost surely, 238871544481916 is an apocalyptic number.

It is an amenable number.

38871544481916 is an abundant number, since it is smaller than the sum of its proper divisors (51952161173508).

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

38871544481916 is a wasteful number, since it uses less digits than its factorization.

38871544481916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431930 (or 431928 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 69.

The spelling of 38871544481916 in words is "thirty-eight trillion, eight hundred seventy-one billion, five hundred forty-four million, four hundred eighty-one thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 797 1594 2391 3188 4782 9564 9643 19286 28929 38572 57858 115716 421483 842966 1264449 1685932 2528898 5057796 7685471 15370942 23056413 30741884 46112826 92225652 335921951 671843902 1007765853 1343687804 2015531706 4031063412 4064360569 8128721138 12193081707 16257442276 24386163414 48772326828 3239295373493 6478590746986 9717886120479 12957181493972 19435772240958 38871544481916