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1064461690 = 25106446169
BaseRepresentation
bin111111011100100…
…110010101111010
32202011222020221001
4333130212111322
54140000233230
6253343035214
735243526565
oct7734462572
92664866831
101064461690
114a6951906
1225859bb0a
1313c6b9bb6
14a152b4dc
15636b60ca
hex3f72657a

1064461690 has 8 divisors (see below), whose sum is σ = 1916031060. Its totient is φ = 425784672.

The previous prime is 1064461669. The next prime is 1064461693. The reversal of 1064461690 is 961644601.

It can be written as a sum of positive squares in 2 ways, for example, as 993447361 + 71014329 = 31519^2 + 8427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10644616902 = 2266157378955312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064461693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53223075 + ... + 53223094.

Almost surely, 21064461690 is an apocalyptic number.

1064461690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1064461690 is a deficient number, since it is larger than the sum of its proper divisors (851569370).

1064461690 is a wasteful number, since it uses less digits than its factorization.

1064461690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106446176.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1064461690 is about 32626.0891005956. The cubic root of 1064461690 is about 1021.0413848374.

The spelling of 1064461690 in words is "one billion, sixty-four million, four hundred sixty-one thousand, six hundred ninety".

Divisors: 1 2 5 10 106446169 212892338 532230845 1064461690