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38965320 = 23335109331
BaseRepresentation
bin1001010010100…
…1000001001000
32201022122101000
42110221001020
534433342240
63511055000
7652125342
oct224510110
981278330
1038965320
111aaa4249
1211071460
1380c3904
145264292
15364a430
hex2529048

38965320 has 128 divisors (see below), whose sum is σ = 131472000. Its totient is φ = 10264320.

The previous prime is 38965307. The next prime is 38965327. The reversal of 38965320 is 2356983.

38965320 is a `hidden beast` number, since 38 + 96 + 532 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38965327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117555 + ... + 117885.

It is an arithmetic number, because the mean of its divisors is an integer number (1027125).

Almost surely, 238965320 is an apocalyptic number.

38965320 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 38965320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65736000).

38965320 is an abundant number, since it is smaller than the sum of its proper divisors (92506680).

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

38965320 is a wasteful number, since it uses less digits than its factorization.

38965320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 38965320 is about 6242.2207586723. The cubic root of 38965320 is about 339.0205955065.

It can be divided in two parts, 3896 and 5320, that added together give a square (9216 = 962).

The spelling of 38965320 in words is "thirty-eight million, nine hundred sixty-five thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 109 120 135 180 216 218 270 327 331 360 436 540 545 654 662 872 981 993 1080 1090 1308 1324 1635 1655 1962 1986 2180 2616 2648 2943 2979 3270 3310 3924 3972 4360 4905 4965 5886 5958 6540 6620 7848 7944 8937 9810 9930 11772 11916 13080 13240 14715 14895 17874 19620 19860 23544 23832 29430 29790 35748 36079 39240 39720 44685 58860 59580 71496 72158 89370 108237 117720 119160 144316 178740 180395 216474 288632 324711 357480 360790 432948 541185 649422 721580 865896 974133 1082370 1298844 1443160 1623555 1948266 2164740 2597688 3247110 3896532 4329480 4870665 6494220 7793064 9741330 12988440 19482660 38965320