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1914679689 = 3131723241521
BaseRepresentation
bin111001000011111…
…1011000110001001
311221102210210202120
41302013323012021
512410124222224
6513554121453
765306336346
oct16207730611
94842723676
101914679689
118a287220a
12455280289
132468a3480
141424097cd
15b315c779
hex721fb189

1914679689 has 64 divisors (see below), whose sum is σ = 3056030208. Its totient is φ = 1054310400.

The previous prime is 1914679661. The next prime is 1914679709. The reversal of 1914679689 is 9869764191.

It is a happy number.

1914679689 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1914679689 - 28 = 1914679433 is a prime.

It is a super-2 number, since 2×19146796892 = 7331996622938273442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1914679289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3674749 + ... + 3675269.

It is an arithmetic number, because the mean of its divisors is an integer number (47750472).

Almost surely, 21914679689 is an apocalyptic number.

It is an amenable number.

1914679689 is a deficient number, since it is larger than the sum of its proper divisors (1141350519).

1914679689 is a wasteful number, since it uses less digits than its factorization.

1914679689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 5878656, while the sum is 60.

The square root of 1914679689 is about 43757.0530200561. The cubic root of 1914679689 is about 1241.7439234685.

The spelling of 1914679689 in words is "one billion, nine hundred fourteen million, six hundred seventy-nine thousand, six hundred eighty-nine".

Divisors: 1 3 13 17 23 39 51 69 221 241 299 391 521 663 723 897 1173 1563 3133 4097 5083 5543 6773 8857 9399 11983 12291 15249 16629 20319 26571 35949 53261 72059 94231 115141 125561 155779 159783 203711 216177 282693 345423 376683 467337 611133 1225003 1632293 2134537 2648243 2887903 3675009 4896879 6403611 7944729 8663709 27748981 37542739 49094351 83246943 112628217 147283053 638226563 1914679689