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19191928202010 = 2345228710360183
BaseRepresentation
bin1000101110100011110000…
…00100000010001100011010
32111221201201110210221110000
410113101320010002030122
510003420032104431020
6104452352231033430
74020366605044044
oct427217004021432
974851643727400
1019191928202010
11612a284157013
12219b635b0b876
13a92a38c76245
144a4c73c9ca94
1523435d115090
hex11747810231a

19191928202010 has 80 divisors (see below), whose sum is σ = 51627531960576. Its totient is φ = 5115609227232.

The previous prime is 19191928201997. The next prime is 19191928202047. The reversal of 19191928202010 is 1020282919191.

It is a super-2 number, since 2×191919282020102 (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3327622 + ... + 7032561.

Almost surely, 219191928202010 is an apocalyptic number.

19191928202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19191928202010 is an abundant number, since it is smaller than the sum of its proper divisors (32435603758566).

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

19191928202010 is a wasteful number, since it uses less digits than its factorization.

19191928202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362489 (or 10362480 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The spelling of 19191928202010 in words is "nineteen trillion, one hundred ninety-one billion, nine hundred twenty-eight million, two hundred two thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 2287 4574 6861 11435 13722 20583 22870 34305 41166 61749 68610 102915 123498 185247 205830 308745 370494 617490 926235 1852470 10360183 20720366 31080549 51800915 62161098 93241647 103601830 155402745 186483294 279724941 310805490 466208235 559449882 839174823 932416470 1398624705 1678349646 2797249410 4195874115 8391748230 23693738521 47387477042 71081215563 118468692605 142162431126 213243646689 236937385210 355406077815 426487293378 639730940067 710812155630 1066218233445 1279461880134 1919192820201 2132436466890 3198654700335 3838385640402 6397309400670 9595964101005 19191928202010