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1904342101 = 2967796997
BaseRepresentation
bin111000110000001…
…1111010001010101
311220201100121020221
41301200133101111
512400002421401
6512544354341
765122432534
oct16140372125
94821317227
101904342101
11897a51452
124519159b1
132446c405c
14140cb831b
15b22b97a1
hex7181f455

1904342101 has 8 divisors (see below), whose sum is σ = 1972939320. Its totient is φ = 1835940288.

The previous prime is 1904342093. The next prime is 1904342137. The reversal of 1904342101 is 1012434091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 424401201 + 1479940900 = 20601^2 + 38470^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1904342101 - 23 = 1904342093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904342801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28866 + ... + 68131.

It is an arithmetic number, because the mean of its divisors is an integer number (246617415).

Almost surely, 21904342101 is an apocalyptic number.

It is an amenable number.

1904342101 is a deficient number, since it is larger than the sum of its proper divisors (68597219).

1904342101 is an equidigital number, since it uses as much as digits as its factorization.

1904342101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97703.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1904342101 is about 43638.7683258820. The cubic root of 1904342101 is about 1239.5051140410.

Adding to 1904342101 its reverse (1012434091), we get a palindrome (2916776192).

The spelling of 1904342101 in words is "one billion, nine hundred four million, three hundred forty-two thousand, one hundred one".

Divisors: 1 29 677 19633 96997 2812913 65666969 1904342101