Search a number
-
+
29172066419 = 171861922087
BaseRepresentation
bin11011001010110010…
…100110100001110011
32210022001101112000102
4123022302212201303
5434221022111134
621222414343015
72051624321216
oct331262464163
983261345012
1029172066419
111140a964301
1257a17baa6b
13299b9b1982
1415aa4cb77d
15b5b0d537e
hex6caca6873

29172066419 has 8 divisors (see below), whose sum is σ = 30904701408. Its totient is φ = 27441279360.

The previous prime is 29172066397. The next prime is 29172066421. The reversal of 29172066419 is 91466027192.

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 29172066419 - 212 = 29172062323 is a prime.

It is a super-2 number, since 2×291720664192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29172066719) 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, 429407 + ... + 492680.

It is an arithmetic number, because the mean of its divisors is an integer number (3863087676).

Almost surely, 229172066419 is an apocalyptic number.

29172066419 is a deficient number, since it is larger than the sum of its proper divisors (1732634989).

29172066419 is a wasteful number, since it uses less digits than its factorization.

29172066419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923965.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 29172066419 in words is "twenty-nine billion, one hundred seventy-two million, sixty-six thousand, four hundred nineteen".

Divisors: 1 17 1861 31637 922087 15675479 1716003907 29172066419