Search a number
-
+
51482392 = 23131737787
BaseRepresentation
bin1100010001100…
…0111100011000
310120212120120021
43010120330120
5101134414032
65035240224
71163410303
oct304307430
9116776507
1051482392
1127073535
12152a9074
13a887070
146ba1b3a
1547be097
hex3118f18

51482392 has 64 divisors (see below), whose sum is σ = 113188320. Its totient is φ = 21731328.

The previous prime is 51482383. The next prime is 51482399. The reversal of 51482392 is 29328415.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51482399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65023 + ... + 65809.

Almost surely, 251482392 is an apocalyptic number.

51482392 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51482392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56594160).

51482392 is an abundant number, since it is smaller than the sum of its proper divisors (61705928).

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

51482392 is a wasteful number, since it uses less digits than its factorization.

51482392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860 (or 856 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 51482392 is about 7175.1231348319. The cubic root of 51482392 is about 372.0085364365.

The spelling of 51482392 in words is "fifty-one million, four hundred eighty-two thousand, three hundred ninety-two".

Divisors: 1 2 4 8 13 17 26 34 37 52 68 74 104 136 148 221 296 442 481 629 787 884 962 1258 1574 1768 1924 2516 3148 3848 5032 6296 8177 10231 13379 16354 20462 26758 29119 32708 40924 53516 58238 65416 81848 107032 116476 173927 232952 347854 378547 495023 695708 757094 990046 1391416 1514188 1980092 3028376 3960184 6435299 12870598 25741196 51482392