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51530253110 = 257736146473
BaseRepresentation
bin101111111111011100…
…010100001100110110
311221000020021002020222
4233333130110030312
51321013221044420
635401144054342
73502652632040
oct577734241466
9157006232228
1051530253110
111a943536946
129ba14643b2
134b22ac523b
1426cba6aa90
151518db8225
hexbff714336

51530253110 has 16 divisors (see below), whose sum is σ = 106005092256. Its totient is φ = 17667515328.

The previous prime is 51530253029. The next prime is 51530253119. The reversal of 51530253110 is 1135203515.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51530253110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51530253119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368073167 + ... + 368073306.

It is an arithmetic number, because the mean of its divisors is an integer number (6625318266).

Almost surely, 251530253110 is an apocalyptic number.

51530253110 is an abundant number, since it is smaller than the sum of its proper divisors (54474839146).

51530253110 is a wasteful number, since it uses less digits than its factorization.

51530253110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736146487.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 51530253110 its reverse (1135203515), we get a palindrome (52665456625).

The spelling of 51530253110 in words is "fifty-one billion, five hundred thirty million, two hundred fifty-three thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 736146473 1472292946 3680732365 5153025311 7361464730 10306050622 25765126555 51530253110