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190074773 = 7217228181
BaseRepresentation
bin10110101010001…
…00111110010101
3111020122210120102
423111010332111
5342124343043
630505543445
74465415600
oct1325047625
9436583512
10190074773
1198323a99
12537a4b85
13304c07a5
141b35b337
1511a486b8
hexb544f95

190074773 has 12 divisors (see below), whose sum is σ = 234114732. Its totient is φ = 153336960.

The previous prime is 190074769. The next prime is 190074821. The reversal of 190074773 is 377470091.

It can be written as a sum of positive squares in 2 ways, for example, as 151609969 + 38464804 = 12313^2 + 6202^2 .

It is not a de Polignac number, because 190074773 - 22 = 190074769 is a prime.

It is a super-2 number, since 2×1900747732 = 72256838662003058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190074743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113258 + ... + 114923.

It is an arithmetic number, because the mean of its divisors is an integer number (19509561).

Almost surely, 2190074773 is an apocalyptic number.

It is an amenable number.

190074773 is a deficient number, since it is larger than the sum of its proper divisors (44039959).

190074773 is a wasteful number, since it uses less digits than its factorization.

190074773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228212 (or 228205 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 190074773 is about 13786.7607870740. The cubic root of 190074773 is about 574.9651124390.

The spelling of 190074773 in words is "one hundred ninety million, seventy-four thousand, seven hundred seventy-three".

Divisors: 1 7 17 49 119 833 228181 1597267 3879077 11180869 27153539 190074773