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51026677 = 132301933
BaseRepresentation
bin1100001010100…
…1101011110101
310120000102102221
43002221223311
5101030323202
65021402341
71156501552
oct302515365
9116012387
1051026677
1126892109
12151093b1
13a757800
146ac3a29
15472e037
hex30a9af5

51026677 has 6 divisors (see below), whose sum is σ = 55253922. Its totient is φ = 47101392.

The previous prime is 51026671. The next prime is 51026687. The reversal of 51026677 is 77662015.

It can be written as a sum of positive squares in 3 ways, for example, as 531441 + 50495236 = 729^2 + 7106^2 .

It is a de Polignac number, because none of the positive numbers 2k-51026677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51026671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150798 + ... + 151135.

It is an arithmetic number, because the mean of its divisors is an integer number (9208987).

Almost surely, 251026677 is an apocalyptic number.

It is an amenable number.

51026677 is a deficient number, since it is larger than the sum of its proper divisors (4227245).

51026677 is a wasteful number, since it uses less digits than its factorization.

51026677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301959 (or 301946 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 51026677 is about 7143.2959479501. The cubic root of 51026677 is about 370.9076256434.

The spelling of 51026677 in words is "fifty-one million, twenty-six thousand, six hundred seventy-seven".

Divisors: 1 13 169 301933 3925129 51026677