Search a number
-
+
1329208888 = 23723390839
BaseRepresentation
bin100111100111010…
…0001111000111000
310102122010210210211
41033032201320320
510210234141023
6335521320504
744640042400
oct11716417070
93378123724
101329208888
11622338347
12311196134
131824c3b47
14c8765800
157ba5ea0d
hex4f3a1e38

1329208888 has 24 divisors (see below), whose sum is σ = 2899168200. Its totient is φ = 569660784.

The previous prime is 1329208877. The next prime is 1329208901. The reversal of 1329208888 is 8888029231.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1695028 + ... + 1695811.

It is an arithmetic number, because the mean of its divisors is an integer number (120798675).

Almost surely, 21329208888 is an apocalyptic number.

It is an amenable number.

1329208888 is an abundant number, since it is smaller than the sum of its proper divisors (1569959312).

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

1329208888 is a wasteful number, since it uses less digits than its factorization.

1329208888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390859 (or 3390848 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 1329208888 is about 36458.3171306631. The cubic root of 1329208888 is about 1099.5063592210.

The spelling of 1329208888 in words is "one billion, three hundred twenty-nine million, two hundred eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 3390839 6781678 13563356 23735873 27126712 47471746 94943492 166151111 189886984 332302222 664604444 1329208888