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38719168660 = 2251935958433
BaseRepresentation
bin100100000011110101…
…111010000010010100
310200221101221120012201
4210003311322002110
51113244101344120
625442022054244
72540332334434
oct440365720224
9120841846181
1038719168660
1115469a63547
127606b7a384
1338608c94b3
141c3443a2c4
15101933140a
hex903d7a094

38719168660 has 12 divisors (see below), whose sum is σ = 81310254228. Its totient is φ = 15487667456.

The previous prime is 38719168651. The next prime is 38719168673. The reversal of 38719168660 is 6686191783.

It can be written as a sum of positive squares in 2 ways, for example, as 6922572804 + 31796595856 = 83202^2 + 178316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967979197 + ... + 967979236.

It is an arithmetic number, because the mean of its divisors is an integer number (6775854519).

Almost surely, 238719168660 is an apocalyptic number.

It is an amenable number.

38719168660 is an abundant number, since it is smaller than the sum of its proper divisors (42591085568).

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

38719168660 is a wasteful number, since it uses less digits than its factorization.

38719168660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935958442 (or 1935958440 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 38719168660 in words is "thirty-eight billion, seven hundred nineteen million, one hundred sixty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 1935958433 3871916866 7743833732 9679792165 19359584330 38719168660