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1908069252 = 223159005771
BaseRepresentation
bin111000110111010…
…1101001110000100
311220222100221221120
41301232231032010
512401431204002
6513200313540
765166215055
oct16156551604
94828327846
101908069252
1189a067741
124530128b0
132453ca67b
141415a872c
15b27a3cbc
hex71bad384

1908069252 has 12 divisors (see below), whose sum is σ = 4452161616. Its totient is φ = 636023080.

The previous prime is 1908069227. The next prime is 1908069269. The reversal of 1908069252 is 2529608091.

1908069252 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79502874 + ... + 79502897.

It is an arithmetic number, because the mean of its divisors is an integer number (371013468).

Almost surely, 21908069252 is an apocalyptic number.

1908069252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1908069252 is an abundant number, since it is smaller than the sum of its proper divisors (2544092364).

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

1908069252 is a wasteful number, since it uses less digits than its factorization.

1908069252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159005778 (or 159005776 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1908069252 is about 43681.4520363048. The cubic root of 1908069252 is about 1240.3132342566.

The spelling of 1908069252 in words is "one billion, nine hundred eight million, sixty-nine thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 159005771 318011542 477017313 636023084 954034626 1908069252