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51038472 = 2332392461
BaseRepresentation
bin1100001010110…
…0100100001000
310120001000121210
43002230210020
5101031212342
65021533120
71156551132
oct302544410
9116030553
1051038472
112689aa61
12151141a0
13a75cca4
146ac8052
15473279c
hex30ac908

51038472 has 32 divisors (see below), whose sum is σ = 133145280. Its totient is φ = 16272960.

The previous prime is 51038441. The next prime is 51038479. The reversal of 51038472 is 27483015.

It is not an unprimeable number, because it can be changed into a prime (51038479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45679 + ... + 46782.

It is an arithmetic number, because the mean of its divisors is an integer number (4160790).

Almost surely, 251038472 is an apocalyptic number.

It is an amenable number.

51038472 is an abundant number, since it is smaller than the sum of its proper divisors (82106808).

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

51038472 is a wasteful number, since it uses less digits than its factorization.

51038472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92493 (or 92489 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 51038472 is about 7144.1214995267. The cubic root of 51038472 is about 370.9362023191.

The spelling of 51038472 in words is "fifty-one million, thirty-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 92461 184922 277383 369844 554766 739688 1109532 2126603 2219064 4253206 6379809 8506412 12759618 17012824 25519236 51038472