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51412486 = 21391731069
BaseRepresentation
bin1100010000011…
…1111000000110
310120202000200011
43010013320012
5101130144421
65033540434
71162666426
oct304077006
9116660604
1051412486
1127025a64
121527471a
13a8612b8
146b84486
1547a84e1
hex3107e06

51412486 has 16 divisors (see below), whose sum is σ = 78195600. Its totient is φ = 25350048.

The previous prime is 51412481. The next prime is 51412519. The reversal of 51412486 is 68421415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51412481) 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 7 ways as a sum of consecutive naturals, for example, 47560 + ... + 48628.

It is an arithmetic number, because the mean of its divisors is an integer number (4887225).

Almost surely, 251412486 is an apocalyptic number.

51412486 is a deficient number, since it is larger than the sum of its proper divisors (26783114).

51412486 is a wasteful number, since it uses less digits than its factorization.

51412486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its digits is 7680, while the sum is 31.

The square root of 51412486 is about 7170.2500653743. The cubic root of 51412486 is about 371.8400813763.

The spelling of 51412486 in words is "fifty-one million, four hundred twelve thousand, four hundred eighty-six".

Divisors: 1 2 139 173 278 346 1069 2138 24047 48094 148591 184937 297182 369874 25706243 51412486