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51498429 = 383206821
BaseRepresentation
bin1100010001110…
…0110110111101
310120220101120020
43010130312331
5101140422204
65035442353
71163505123
oct304346675
9116811506
1051498429
1127084594
12152b63b9
13a891458
146ba7913
1547c3bd9
hex311cdbd

51498429 has 8 divisors (see below), whose sum is σ = 69492192. Its totient is φ = 33918480.

The previous prime is 51498407. The next prime is 51498439. The reversal of 51498429 is 92489415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51498429 - 25 = 51498397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51498439) 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, 103162 + ... + 103659.

It is an arithmetic number, because the mean of its divisors is an integer number (8686524).

Almost surely, 251498429 is an apocalyptic number.

It is an amenable number.

51498429 is a deficient number, since it is larger than the sum of its proper divisors (17993763).

51498429 is a wasteful number, since it uses less digits than its factorization.

51498429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206907.

The product of its digits is 103680, while the sum is 42.

The square root of 51498429 is about 7176.2405896124. The cubic root of 51498429 is about 372.0471598784.

The spelling of 51498429 in words is "fifty-one million, four hundred ninety-eight thousand, four hundred twenty-nine".

Divisors: 1 3 83 249 206821 620463 17166143 51498429