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19612488192 = 293111768281
BaseRepresentation
bin10010010000111111…
…101101001000000000
31212121211100121222120
4102100333231020000
5310131244110232
613002043404240
71263005253603
oct222077551000
955554317876
1019612488192
118354813730
123974223680
131b073195cb
14d40a5233a
1579bc2292c
hex490fed200

19612488192 has 160 divisors (see below), whose sum is σ = 60352547904. Its totient is φ = 5593497600.

The previous prime is 19612488163. The next prime is 19612488229. The reversal of 19612488192 is 29188421691.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 253092 + ... + 321372.

Almost surely, 219612488192 is an apocalyptic number.

19612488192 is a gapful number since it is divisible by the number (12) 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 19612488192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30176273952).

19612488192 is an abundant number, since it is smaller than the sum of its proper divisors (40740059712).

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

19612488192 is a wasteful number, since it uses less digits than its factorization.

19612488192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68330 (or 68314 counting only the distinct ones).

The product of its digits is 497664, while the sum is 51.

The spelling of 19612488192 in words is "nineteen billion, six hundred twelve million, four hundred eighty-eight thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 44 48 51 64 66 68 88 96 102 128 132 136 176 187 192 204 256 264 272 352 374 384 408 512 528 544 561 704 748 768 816 1056 1088 1122 1408 1496 1536 1632 2112 2176 2244 2816 2992 3264 4224 4352 4488 5632 5984 6528 8448 8704 8976 11968 13056 16896 17952 23936 26112 35904 47872 68281 71808 95744 136562 143616 204843 273124 287232 409686 546248 751091 819372 1092496 1160777 1502182 1638744 2184992 2253273 2321554 3004364 3277488 3482331 4369984 4506546 4643108 6008728 6554976 6964662 8739968 9013092 9286216 12017456 12768547 13109952 13929324 17479936 18026184 18572432 24034912 25537094 26219904 27858648 34959872 36052368 37144864 38305641 48069824 51074188 52439808 55717296 72104736 74289728 76611282 96139648 102148376 104879616 111434592 144209472 148579456 153222564 192279296 204296752 222869184 288418944 297158912 306445128 384558592 408593504 445738368 576837888 594317824 612890256 817187008 891476736 1153675776 1225780512 1634374016 1782953472 2451561024 3268748032 4903122048 6537496064 9806244096 19612488192