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19368272 = 2471179199
BaseRepresentation
bin100100111100…
…0100101010000
31100110000021102
41021320211100
514424241042
61531043532
7323425160
oct111704520
940400242
1019368272
11aa29740
1265a05a8
134021a21
1428025a0
151a78b32
hex1278950

19368272 has 80 divisors (see below), whose sum is σ = 47616000. Its totient is φ = 7413120.

The previous prime is 19368263. The next prime is 19368289. The reversal of 19368272 is 27286391.

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, 97229 + ... + 97427.

It is an arithmetic number, because the mean of its divisors is an integer number (595200).

Almost surely, 219368272 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 19368272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23808000).

19368272 is an abundant number, since it is smaller than the sum of its proper divisors (28247728).

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

19368272 is a wasteful number, since it uses less digits than its factorization.

19368272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 298 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 19368272 is about 4400.9398996124. The cubic root of 19368272 is about 268.5531753746.

The spelling of 19368272 in words is "nineteen million, three hundred sixty-eight thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 79 88 112 154 158 176 199 308 316 398 553 616 632 796 869 1106 1232 1264 1393 1592 1738 2189 2212 2786 3184 3476 4378 4424 5572 6083 6952 8756 8848 11144 12166 13904 15323 15721 17512 22288 24332 30646 31442 35024 48664 61292 62884 97328 110047 122584 125768 172931 220094 245168 251536 345862 440188 691724 880376 1210517 1383448 1760752 2421034 2766896 4842068 9684136 19368272