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51413450 = 2521193479
BaseRepresentation
bin1100010000100…
…0000111001010
310120202001222212
43010020013022
5101130212300
65033545122
71163002304
oct304100712
9116661885
1051413450
1127026760
12152751a2
13a86187a
146b84974
1547a8935
hex31081ca

51413450 has 24 divisors (see below), whose sum is σ = 104323680. Its totient is φ = 18695600.

The previous prime is 51413429. The next prime is 51413473. The reversal of 51413450 is 5431415.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46190 + ... + 47289.

It is an arithmetic number, because the mean of its divisors is an integer number (4346820).

Almost surely, 251413450 is an apocalyptic number.

51413450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51413450 is an abundant number, since it is smaller than the sum of its proper divisors (52910230).

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

51413450 is a wasteful number, since it uses less digits than its factorization.

51413450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93502 (or 93497 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51413450 is about 7170.3172872614. The cubic root of 51413450 is about 371.8424054006.

Adding to 51413450 its reverse (5431415), we get a palindrome (56844865).

The spelling of 51413450 in words is "fifty-one million, four hundred thirteen thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 93479 186958 467395 934790 1028269 2056538 2336975 4673950 5141345 10282690 25706725 51413450