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51411872 = 251984559
BaseRepresentation
bin1100010000011…
…1101110100000
310120201222211102
43010013232200
5101130134442
65033533532
71162664561
oct304075640
9116658742
1051411872
1127025556
12152742a8
13a860c35
146b84168
1547a8232
hex3107ba0

51411872 has 24 divisors (see below), whose sum is σ = 106545600. Its totient is φ = 24352704.

The previous prime is 51411869. The next prime is 51411889. The reversal of 51411872 is 27811415.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41672 + ... + 42887.

It is an arithmetic number, because the mean of its divisors is an integer number (4439400).

Almost surely, 251411872 is an apocalyptic number.

It is an amenable number.

51411872 is an abundant number, since it is smaller than the sum of its proper divisors (55133728).

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

51411872 is a wasteful number, since it uses less digits than its factorization.

51411872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84588 (or 84580 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 51411872 is about 7170.2072494454. The cubic root of 51411872 is about 371.8386011216.

The spelling of 51411872 in words is "fifty-one million, four hundred eleven thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 84559 169118 338236 676472 1352944 1606621 2705888 3213242 6426484 12852968 25705936 51411872