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190620486 = 23372611181
BaseRepresentation
bin10110101110010…
…10001101000110
3111021200112011000
423113022031012
5342244323421
630525354130
74503150600
oct1327121506
9437615130
10190620486
1198666aa1
1253a08946
1330651cb4
141b460170
1511b05226
hexb5ca346

190620486 has 96 divisors (see below), whose sum is σ = 501262560. Its totient is φ = 53524800.

The previous prime is 190620461. The next prime is 190620487. The reversal of 190620486 is 684026091.

190620486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 190620486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190620487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160816 + ... + 161996.

It is an arithmetic number, because the mean of its divisors is an integer number (5221485).

Almost surely, 2190620486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190620486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250631280).

190620486 is an abundant number, since it is smaller than the sum of its proper divisors (310642074).

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

190620486 is a wasteful number, since it uses less digits than its factorization.

190620486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 190620486 is about 13806.5377991733. The cubic root of 190620486 is about 575.5148366886.

The spelling of 190620486 in words is "one hundred ninety million, six hundred twenty thousand, four hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 49 54 61 63 98 122 126 147 183 189 294 366 378 427 441 549 854 882 1098 1181 1281 1323 1647 2362 2562 2646 2989 3294 3543 3843 5978 7086 7686 8267 8967 10629 11529 16534 17934 21258 23058 24801 26901 31887 49602 53802 57869 63774 72041 74403 80703 115738 144082 148806 161406 173607 216123 223209 347214 432246 446418 504287 520821 648369 1008574 1041642 1296738 1512861 1562463 1945107 3025722 3124926 3530009 3890214 4538583 7060018 9077166 10590027 13615749 21180054 27231498 31770081 63540162 95310243 190620486