Search a number
-
+
8157396 = 2231352291
BaseRepresentation
bin11111000111100011010100
3120100102211210
4133013203110
54042014041
6450501420
7126223332
oct37074324
916312753
108157396
114671855
122894870
1318c7c80
141124b52
15ab2016
hex7c78d4

8157396 has 24 divisors (see below), whose sum is σ = 20498464. Its totient is φ = 2509920.

The previous prime is 8157379. The next prime is 8157421. The reversal of 8157396 is 6937518.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25990 + ... + 26301.

Almost surely, 28157396 is an apocalyptic number.

It is an amenable number.

8157396 is an abundant number, since it is smaller than the sum of its proper divisors (12341068).

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

8157396 is a wasteful number, since it uses less digits than its factorization.

8157396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52311 (or 52309 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 8157396 is about 2856.1155438812. The cubic root of 8157396 is about 201.3031242289.

The spelling of 8157396 in words is "eight million, one hundred fifty-seven thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 52291 104582 156873 209164 313746 627492 679783 1359566 2039349 2719132 4078698 8157396