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51034245 = 3547191379
BaseRepresentation
bin1100001010101…
…1100010000101
310120000210211020
43002223202011
5101031043440
65021501353
71156532613
oct302534205
9116023736
1051034245
1126897869
1215111859
13a75b0a2
146ac66b3
1547313d0
hex30ab885

51034245 has 32 divisors (see below), whose sum is σ = 84049920. Its totient is φ = 26429760.

The previous prime is 51034241. The next prime is 51034271. The reversal of 51034245 is 54243015.

It is not a de Polignac number, because 51034245 - 22 = 51034241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034241) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 134466 + ... + 134844.

It is an arithmetic number, because the mean of its divisors is an integer number (2626560).

Almost surely, 251034245 is an apocalyptic number.

It is an amenable number.

51034245 is a deficient number, since it is larger than the sum of its proper divisors (33015675).

51034245 is a wasteful number, since it uses less digits than its factorization.

51034245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 51034245 is about 7143.8256557674. The cubic root of 51034245 is about 370.9259617394.

The spelling of 51034245 in words is "fifty-one million, thirty-four thousand, two hundred forty-five".

Divisors: 1 3 5 15 47 141 191 235 379 573 705 955 1137 1895 2865 5685 8977 17813 26931 44885 53439 72389 89065 134655 217167 267195 361945 1085835 3402283 10206849 17011415 51034245