Search a number
-
+
12005019297 = 3231371279157
BaseRepresentation
bin10110010111000111…
…00000111010100001
31010222122120011112100
423023203200322201
5144041241104142
65303125121013
7603331660155
oct131343407241
933878504470
1012005019297
11510057a757
1223b0559169
13119420131b
1481c567065
154a3e12b4c
hex2cb8e0ea1

12005019297 has 48 divisors (see below), whose sum is σ = 18530516992. Its totient is φ = 7475690880.

The previous prime is 12005019293. The next prime is 12005019311. The reversal of 12005019297 is 79291050021.

12005019297 is a `hidden beast` number, since 120 + 0 + 501 + 9 + 29 + 7 = 666.

It is not a de Polignac number, because 12005019297 - 22 = 12005019293 is a prime.

It is a super-3 number, since 3×120050192973 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12005019293) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1306443 + ... + 1315599.

Almost surely, 212005019297 is an apocalyptic number.

It is an amenable number.

12005019297 is a deficient number, since it is larger than the sum of its proper divisors (6525497695).

12005019297 is a wasteful number, since it uses less digits than its factorization.

12005019297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9358 (or 9355 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The spelling of 12005019297 in words is "twelve billion, five million, nineteen thousand, two hundred ninety-seven".

Divisors: 1 3 9 31 37 93 111 127 279 333 381 1143 1147 3441 3937 4699 9157 10323 11811 14097 27471 35433 42291 82413 145669 283867 338809 437007 851601 1016427 1162939 1311021 2554803 3049281 3488817 10466451 10503079 31509237 36051109 43028743 94527711 108153327 129086229 324459981 387258687 1333891033 4001673099 12005019297