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1906090264 = 231347389953
BaseRepresentation
bin111000110011100…
…1010000100011000
311220211122102021201
41301213022010120
512400424342024
6513050043544
765143333321
oct16147120430
94824572251
101906090264
11898a35911
124524195b4
13244b86980
14141211448
15b2512744
hex719ca118

1906090264 has 32 divisors (see below), whose sum is σ = 3930736320. Its totient is φ = 861014016.

The previous prime is 1906090259. The next prime is 1906090267. The reversal of 1906090264 is 4620906091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906090267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190089 + ... + 199864.

It is an arithmetic number, because the mean of its divisors is an integer number (122835510).

Almost surely, 21906090264 is an apocalyptic number.

It is an amenable number.

1906090264 is an abundant number, since it is smaller than the sum of its proper divisors (2024646056).

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

1906090264 is a wasteful number, since it uses less digits than its factorization.

1906090264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390019 (or 390015 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1906090264 is about 43658.7936617585. The cubic root of 1906090264 is about 1239.8842816051.

The spelling of 1906090264 in words is "one billion, nine hundred six million, ninety thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 376 611 1222 2444 4888 389953 779906 1559812 3119624 5069389 10138778 18327791 20277556 36655582 40555112 73311164 146622328 238261283 476522566 953045132 1906090264