Search a number
-
+
2642124078 = 23211194316333
BaseRepresentation
bin1001110101111011…
…1001110100101110
320211010121210212100
42131132321310232
520402340432303
61114101515530
7122321453436
oct23536716456
96733553770
102642124078
111136456a20
12618a12ba6
13331501539
141b0c892c6
15106e518a3
hex9d7b9d2e

2642124078 has 96 divisors (see below), whose sum is σ = 6726994560. Its totient is φ = 740819520.

The previous prime is 2642124073. The next prime is 2642124131. The reversal of 2642124078 is 8704212462.

2642124078 is a `hidden beast` number, since 2 + 642 + 1 + 2 + 4 + 0 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642124073) 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, 153600 + ... + 169932.

It is an arithmetic number, because the mean of its divisors is an integer number (70072860).

Almost surely, 22642124078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2642124078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3363497280).

2642124078 is an abundant number, since it is smaller than the sum of its proper divisors (4084870482).

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

2642124078 is a wasteful number, since it uses less digits than its factorization.

2642124078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16414 (or 16411 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2642124078 is about 51401.5960647138. The cubic root of 2642124078 is about 1382.4552102224.

The spelling of 2642124078 in words is "two billion, six hundred forty-two million, one hundred twenty-four thousand, seventy-eight".

Divisors: 1 2 3 6 9 11 18 19 22 33 38 43 57 66 86 99 114 129 171 198 209 258 342 387 418 473 627 774 817 946 1254 1419 1634 1881 2451 2838 3762 4257 4902 7353 8514 8987 14706 16333 17974 26961 32666 48999 53922 80883 97998 146997 161766 179663 293994 310327 359326 538989 620654 702319 930981 1077978 1404638 1616967 1861962 2106957 2792943 3233934 3413597 4213914 5585886 6320871 6827194 7725509 10240791 12641742 13344061 15451018 20481582 23176527 26688122 30722373 40032183 46353054 61444746 69529581 80064366 120096549 139059162 146784671 240193098 293569342 440354013 880708026 1321062039 2642124078