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3381768920 = 235313773709
BaseRepresentation
bin1100100110010001…
…1011001011011000
322201200101122211202
43021210123023120
523411213101140
61315323013332
7146542363415
oct31144331330
98650348752
103381768920
111485a14052
127a466a248
1341b8118ca
142411c310c
1514bd55915
hexc991b2d8

3381768920 has 64 divisors (see below), whose sum is σ = 8066822400. Its totient is φ = 1273674240.

The previous prime is 3381768917. The next prime is 3381768937. The reversal of 3381768920 is 298671833.

It is a super-2 number, since 2×33817689202 = 22872722056555932800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 9026 + ... + 82734.

It is an arithmetic number, because the mean of its divisors is an integer number (126044100).

Almost surely, 23381768920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3381768920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4033411200).

3381768920 is an abundant number, since it is smaller than the sum of its proper divisors (4685053480).

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

3381768920 is a wasteful number, since it uses less digits than its factorization.

3381768920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73788 (or 73784 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 3381768920 is about 58152.9785995524. The cubic root of 3381768920 is about 1501.0021332998.

The spelling of 3381768920 in words is "three billion, three hundred eighty-one million, seven hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 37 40 62 74 124 148 155 185 248 296 310 370 620 740 1147 1240 1480 2294 4588 5735 9176 11470 22940 45880 73709 147418 294836 368545 589672 737090 1474180 2284979 2727233 2948360 4569958 5454466 9139916 10908932 11424895 13636165 18279832 21817864 22849790 27272330 45699580 54544660 84544223 91399160 109089320 169088446 338176892 422721115 676353784 845442230 1690884460 3381768920