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386296920 = 233258211307
BaseRepresentation
bin10111000001100…
…110110001011000
3222220212220202100
4113001212301120
51242343000140
6102155403400
712400320042
oct2701466130
9886786670
10386296920
11189066659
12a9453560
1362054379
1439438a92
1523da8530
hex17066c58

386296920 has 96 divisors (see below), whose sum is σ = 1257955920. Its totient is φ = 102808320.

The previous prime is 386296919. The next prime is 386296949. The reversal of 386296920 is 29692683.

It is a super-3 number, since 3×3862969203 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 294907 + ... + 296213.

Almost surely, 2386296920 is an apocalyptic number.

386296920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386296920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628977960).

386296920 is an abundant number, since it is smaller than the sum of its proper divisors (871659000).

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

386296920 is a wasteful number, since it uses less digits than its factorization.

386296920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 386296920 is about 19654.4376668477. The cubic root of 386296920 is about 728.2945865311.

The spelling of 386296920 in words is "three hundred eighty-six million, two hundred ninety-six thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 821 1307 1642 2463 2614 3284 3921 4105 4926 5228 6535 6568 7389 7842 8210 9852 10456 11763 12315 13070 14778 15684 16420 19605 19704 23526 24630 26140 29556 31368 32840 36945 39210 47052 49260 52280 58815 59112 73890 78420 94104 98520 117630 147780 156840 235260 295560 470520 1073047 2146094 3219141 4292188 5365235 6438282 8584376 9657423 10730470 12876564 16095705 19314846 21460940 25753128 32191410 38629692 42921880 48287115 64382820 77259384 96574230 128765640 193148460 386296920