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190311828 = 223719119243
BaseRepresentation
bin10110101011111…
…10110110010100
3111021002211202020
423111332312110
5342204434303
630515013140
74500423660
oct1325766624
9437084666
10190311828
1198476103
125389a1b0
1330574665
141b3bd8a0
1511a93a53
hexb57ed94

190311828 has 48 divisors (see below), whose sum is σ = 534213120. Its totient is φ = 51512544.

The previous prime is 190311811. The next prime is 190311829. The reversal of 190311828 is 828113091.

190311828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190311829) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58026 + ... + 61217.

It is an arithmetic number, because the mean of its divisors is an integer number (11129440).

Almost surely, 2190311828 is an apocalyptic number.

It is an amenable number.

190311828 is an abundant number, since it is smaller than the sum of its proper divisors (343901292).

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

190311828 is a wasteful number, since it uses less digits than its factorization.

190311828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119276 (or 119274 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 190311828 is about 13795.3553053193. The cubic root of 190311828 is about 575.2040389933.

It can be divided in two parts, 1903 and 11828, that added together give a palindrome (13731).

The spelling of 190311828 in words is "one hundred ninety million, three hundred eleven thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 119243 238486 357729 476972 715458 834701 1430916 1669402 2265617 2504103 3338804 4531234 5008206 6796851 9062468 10016412 13593702 15859319 27187404 31718638 47577957 63437276 95155914 190311828