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51142606 = 2173147811
BaseRepresentation
bin1100001100010…
…1111111001110
310120020022110121
43003011333032
5101043030411
65024055154
71160463544
oct303057716
9116208417
1051142606
1126961219
12151644ba
13a7984c8
146b13d94
154753571
hex30c5fce

51142606 has 8 divisors (see below), whose sum is σ = 77157864. Its totient is φ = 25423320.

The previous prime is 51142577. The next prime is 51142607. The reversal of 51142606 is 60624115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×511426062 = 5231132296942472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51142607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73560 + ... + 74251.

It is an arithmetic number, because the mean of its divisors is an integer number (9644733).

Almost surely, 251142606 is an apocalyptic number.

51142606 is a deficient number, since it is larger than the sum of its proper divisors (26015258).

51142606 is a wasteful number, since it uses less digits than its factorization.

51142606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147986.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 51142606 is about 7151.4058757702. The cubic root of 51142606 is about 371.1883051505.

The spelling of 51142606 in words is "fifty-one million, one hundred forty-two thousand, six hundred six".

Divisors: 1 2 173 346 147811 295622 25571303 51142606