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190125810 = 23257476421
BaseRepresentation
bin10110101010100…
…01011011110010
3111020202101120200
423111101123302
5342133011220
630511020030
74466020440
oct1325213362
9436671520
10190125810
1198359376
125380a616
133050aaa4
141b371b90
1511a58890
hexb5516f2

190125810 has 96 divisors (see below), whose sum is σ = 577055232. Its totient is φ = 42526080.

The previous prime is 190125779. The next prime is 190125829. The reversal of 190125810 is 18521091.

It is a super-2 number, since 2×1901258102 = 72295647256312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26400 + ... + 32820.

It is an arithmetic number, because the mean of its divisors is an integer number (6010992).

Almost surely, 2190125810 is an apocalyptic number.

190125810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 190125810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288527616).

190125810 is an abundant number, since it is smaller than the sum of its proper divisors (386929422).

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

190125810 is a wasteful number, since it uses less digits than its factorization.

190125810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 190125810 is about 13788.6116052342. The cubic root of 190125810 is about 575.0165691508.

The spelling of 190125810 in words is "one hundred ninety million, one hundred twenty-five thousand, eight hundred ten".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 47 63 70 90 94 105 126 141 210 235 282 315 329 423 470 630 658 705 846 987 1410 1645 1974 2115 2961 3290 4230 4935 5922 6421 9870 12842 14805 19263 29610 32105 38526 44947 57789 64210 89894 96315 115578 134841 192630 224735 269682 288945 301787 404523 449470 577890 603574 674205 809046 905361 1348410 1508935 1810722 2022615 2112509 2716083 3017870 4045230 4225018 4526805 5432166 6337527 9053610 10562545 12675054 13580415 19012581 21125090 27160830 31687635 38025162 63375270 95062905 190125810