Search a number
-
+
51104152 = 2311797351
BaseRepresentation
bin1100001011110…
…0100110011000
310120011100201101
43002330212120
5101040313102
65023201144
71160243461
oct302744630
9116140641
1051104152
1126935340
12151461b4
13a783b58
146b03d68
154746e87
hex30bc998

51104152 has 32 divisors (see below), whose sum is σ = 105868800. Its totient is φ = 22932000.

The previous prime is 51104149. The next prime is 51104191. The reversal of 51104152 is 25140115.

It is a super-2 number, since 2×511041522 = 5223268703278208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3277 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (3308400).

Almost surely, 251104152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51104152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52934400).

51104152 is an abundant number, since it is smaller than the sum of its proper divisors (54764648).

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

51104152 is a wasteful number, since it uses less digits than its factorization.

51104152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447 (or 7443 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51104152 is about 7148.7168079313. The cubic root of 51104152 is about 371.0952499652.

Adding to 51104152 its reverse (25140115), we get a palindrome (76244267).

The spelling of 51104152 in words is "fifty-one million, one hundred four thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 79 88 158 316 632 869 1738 3476 6952 7351 14702 29404 58808 80861 161722 323444 580729 646888 1161458 2322916 4645832 6388019 12776038 25552076 51104152