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51342430 = 2543139859
BaseRepresentation
bin1100001111011…
…0110001011110
310120121110120111
43003312301132
5101120424210
65032240234
71162255246
oct303666136
9116543514
1051342430
1126a88367
121524007a
13a838449
146b66b26
15479288a
hex30f6c5e

51342430 has 32 divisors (see below), whose sum is σ = 95356800. Its totient is φ = 19891872.

The previous prime is 51342407. The next prime is 51342451. The reversal of 51342430 is 3424315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59341 + ... + 60199.

It is an arithmetic number, because the mean of its divisors is an integer number (2979900).

Almost surely, 251342430 is an apocalyptic number.

51342430 is a deficient number, since it is larger than the sum of its proper divisors (44014370).

51342430 is a wasteful number, since it uses less digits than its factorization.

51342430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 51342430 is about 7165.3632147994. The cubic root of 51342430 is about 371.6711115942.

Adding to 51342430 its reverse (3424315), we get a palindrome (54766745).

The spelling of 51342430 in words is "fifty-one million, three hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 43 86 139 215 278 430 695 859 1390 1718 4295 5977 8590 11954 29885 36937 59770 73874 119401 184685 238802 369370 597005 1194010 5134243 10268486 25671215 51342430