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51452025 = 352686027
BaseRepresentation
bin1100010001000…
…1100001111001
310120211000220120
43010101201321
5101132431100
65034443453
71163222622
oct304214171
9116730816
1051452025
1127052739
1215293589
13a8762b1
146b94a49
1547b50a0
hex3111879

51452025 has 12 divisors (see below), whose sum is σ = 85067472. Its totient is φ = 27441040.

The previous prime is 51452017. The next prime is 51452059. The reversal of 51452025 is 52025415.

It is a happy number.

It is not a de Polignac number, because 51452025 - 23 = 51452017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51451986 and 51452004.

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 11 ways as a sum of consecutive naturals, for example, 342939 + ... + 343088.

It is an arithmetic number, because the mean of its divisors is an integer number (7088956).

Almost surely, 251452025 is an apocalyptic number.

It is an amenable number.

51452025 is a deficient number, since it is larger than the sum of its proper divisors (33615447).

51452025 is a wasteful number, since it uses less digits than its factorization.

51452025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686040 (or 686035 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51452025 is about 7173.0066917576. The cubic root of 51452025 is about 371.9353787046.

The spelling of 51452025 in words is "fifty-one million, four hundred fifty-two thousand, twenty-five".

Divisors: 1 3 5 15 25 75 686027 2058081 3430135 10290405 17150675 51452025