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51386058 = 2322854781
BaseRepresentation
bin1100010000000…
…1011011001010
310120200200102100
43010001123022
5101123323213
65033214230
71162526403
oct304013312
9116620370
1051386058
1127008119
1215261376
13a852269
146b789aa
1547a0773
hex31016ca

51386058 has 12 divisors (see below), whose sum is σ = 111336498. Its totient is φ = 17128680.

The previous prime is 51386039. The next prime is 51386059. The reversal of 51386058 is 85068315.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 363609 = 7143^2 + 603^2 .

It is not an unprimeable number, because it can be changed into a prime (51386059) 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, 1427373 + ... + 1427408.

Almost surely, 251386058 is an apocalyptic number.

51386058 is an abundant number, since it is smaller than the sum of its proper divisors (59950440).

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

51386058 is a wasteful number, since it uses less digits than its factorization.

51386058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854789 (or 2854786 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 51386058 is about 7168.4069359935. The cubic root of 51386058 is about 371.7763570768.

The spelling of 51386058 in words is "fifty-one million, three hundred eighty-six thousand, fifty-eight".

Divisors: 1 2 3 6 9 18 2854781 5709562 8564343 17128686 25693029 51386058