Search a number
-
+
801615164 = 227211241563
BaseRepresentation
bin101111110001111…
…010110100111100
32001212101021021112
4233301322310330
53120203141124
6211313221152
725602421310
oct5761726474
92055337245
10801615164
11381544379
121a45617b8
13ca0ca0cc
1478669b40
154a59590e
hex2fc7ad3c

801615164 has 48 divisors (see below), whose sum is σ = 1620385536. Its totient is φ = 339897600.

The previous prime is 801615151. The next prime is 801615167. The reversal of 801615164 is 461516108.

801615164 = T1 + T2 + ... + T1687.

801615164 is a nontrivial binomial coefficient, being equal to C(1689, 3).

It is a self number, because there is not a number n which added to its sum of digits gives 801615164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801615167) by changing a digit.

It is the 1687-th tetrahedral number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423547 + ... + 1424109.

It is an arithmetic number, because the mean of its divisors is an integer number (33758032).

Almost surely, 2801615164 is an apocalyptic number.

It is an amenable number.

801615164 is an abundant number, since it is smaller than the sum of its proper divisors (818770372).

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

801615164 is a wasteful number, since it uses less digits than its factorization.

801615164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 801615164 is about 28312.8091859497. The cubic root of 801615164 is about 928.9420906825.

The spelling of 801615164 in words is "eight hundred one million, six hundred fifteen thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 211 241 422 482 563 844 964 1126 1477 1687 2252 2954 3374 3941 5908 6748 7882 15764 50851 101702 118793 135683 203404 237586 271366 355957 475172 542732 711914 831551 949781 1423828 1663102 1899562 3326204 3799124 28629113 57258226 114516452 200403791 400807582 801615164