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38277767940 = 22352327737513
BaseRepresentation
bin100011101001100010…
…000110001100000100
310122210122101002020220
4203221202012030010
51111343102033230
625330133224340
72523362442036
oct435142061404
9118718332226
1038277767940
1115262890665
1275031920b0
1337c0320939
141bd1979c56
15ee06e0d10
hex8e9886304

38277767940 has 48 divisors (see below), whose sum is σ = 111837656448. Its totient is φ = 9763604224.

The previous prime is 38277767929. The next prime is 38277767959. The reversal of 38277767940 is 4976777283.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13867377 + ... + 13870136.

It is an arithmetic number, because the mean of its divisors is an integer number (2329951176).

Almost surely, 238277767940 is an apocalyptic number.

38277767940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38277767940 is an abundant number, since it is smaller than the sum of its proper divisors (73559888508).

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

38277767940 is a wasteful number, since it uses less digits than its factorization.

38277767940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27737548 (or 27737546 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 60.

The spelling of 38277767940 in words is "thirty-eight billion, two hundred seventy-seven million, seven hundred sixty-seven thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 27737513 55475026 83212539 110950052 138687565 166425078 277375130 332850156 416062695 554750260 637962799 832125390 1275925598 1664250780 1913888397 2551851196 3189813995 3827776794 6379627990 7655553588 9569441985 12759255980 19138883970 38277767940