Search a number
-
+
309471033429 = 33172365944483
BaseRepresentation
bin1001000000011011110…
…10010011100001010101
31002120210120100101011000
410200031322103201111
520032244041032204
6354100302133513
731233660244605
oct4401572234125
91076716311130
10309471033429
1110a27836a958
124bb89281299
132324c0614bc
1410d9ad2cc05
1580b3dd1039
hex480de93855

309471033429 has 64 divisors (see below), whose sum is σ = 507331123200. Its totient is φ = 185449372416.

The previous prime is 309471033419. The next prime is 309471033449. The reversal of 309471033429 is 924330174903.

309471033429 is a `hidden beast` number, since 30 + 94 + 7 + 103 + 3 + 429 = 666.

It is not a de Polignac number, because 309471033429 - 25 = 309471033397 is a prime.

It is a super-2 number, since 2×3094710334292 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309471033419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6934822 + ... + 6979304.

It is an arithmetic number, because the mean of its divisors is an integer number (7927048800).

Almost surely, 2309471033429 is an apocalyptic number.

It is an amenable number.

309471033429 is a deficient number, since it is larger than the sum of its proper divisors (197860089771).

309471033429 is a wasteful number, since it uses less digits than its factorization.

309471033429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45191 (or 45185 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 309471033429 in words is "three hundred nine billion, four hundred seventy-one million, thirty-three thousand, four hundred twenty-nine".

Divisors: 1 3 9 17 23 27 51 69 153 207 391 459 621 659 1173 1977 3519 5931 10557 11203 15157 17793 33609 44483 45471 100827 133449 136413 257669 302481 400347 409239 756211 773007 1023109 1201041 2268633 2319021 3069327 6805899 6957063 9207981 17392853 20417697 27623943 29314297 52178559 87942891 156535677 263828673 469607031 498343049 674228831 791486019 1495029147 2022686493 4485087441 6068059479 11461890127 13455262323 18204178437 34385670381 103157011143 309471033429