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51928338 = 23721116057
BaseRepresentation
bin1100011000010…
…1110100010010
310121201020021210
43012011310102
5101243201323
65053000550
71200245400
oct306056422
9117636253
1051928338
1127348590
1215483156
13a9b2037
146c7a470
15485b293
hex3185d12

51928338 has 48 divisors (see below), whose sum is σ = 131804064. Its totient is φ = 13487040.

The previous prime is 51928333. The next prime is 51928339. The reversal of 51928338 is 83382915.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51928296 and 51928305.

It is not an unprimeable number, because it can be changed into a prime (51928333) 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 23 ways as a sum of consecutive naturals, for example, 4795 + ... + 11262.

It is an arithmetic number, because the mean of its divisors is an integer number (2745918).

Almost surely, 251928338 is an apocalyptic number.

51928338 is an abundant number, since it is smaller than the sum of its proper divisors (79875726).

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

51928338 is a wasteful number, since it uses less digits than its factorization.

51928338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16087 (or 16080 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 51928338 is about 7206.1319721471. The cubic root of 51928338 is about 373.0795758221.

It can be divided in two parts, 5192 and 8338, that added together give a triangular number (13530 = T164).

The spelling of 51928338 in words is "fifty-one million, nine hundred twenty-eight thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 147 154 231 294 462 539 1078 1617 3234 16057 32114 48171 96342 112399 176627 224798 337197 353254 529881 674394 786793 1059762 1236389 1573586 2360379 2472778 3709167 4720758 7418334 8654723 17309446 25964169 51928338