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38131296 = 2537179317
BaseRepresentation
bin1001000101110…
…1011001100000
32122202021022020
42101131121200
534230200141
63441141440
7642052650
oct221353140
978667266
1038131296
111a584675
121092a880
137b910c8
1450c8360
153533266
hex245d660

38131296 has 96 divisors (see below), whose sum is σ = 115395840. Its totient is φ = 10799616.

The previous prime is 38131267. The next prime is 38131297. The reversal of 38131296 is 69213183.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38131297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120130 + ... + 120446.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 238131296 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 38131296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57697920).

38131296 is an abundant number, since it is smaller than the sum of its proper divisors (77264544).

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

38131296 is a wasteful number, since it uses less digits than its factorization.

38131296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 508 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 38131296 is about 6175.0543317448. The cubic root of 38131296 is about 336.5843007779.

The spelling of 38131296 in words is "thirty-eight million, one hundred thirty-one thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 179 224 317 336 358 537 634 672 716 951 1074 1253 1268 1432 1902 2148 2219 2506 2536 2864 3759 3804 4296 4438 5012 5072 5728 6657 7518 7608 8592 8876 10024 10144 13314 15036 15216 17184 17752 20048 26628 30072 30432 35504 40096 53256 56743 60144 71008 106512 113486 120288 170229 213024 226972 340458 397201 453944 680916 794402 907888 1191603 1361832 1588804 1815776 2383206 2723664 3177608 4766412 5447328 6355216 9532824 12710432 19065648 38131296