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51060060500 = 2253391126111
BaseRepresentation
bin101111100011011010…
…101011000101010100
311212210110111211020212
4233203122223011110
51314032333414000
635242350144552
73455213232101
oct574332530524
9155713454225
1051060060500
111a722089209
129a8bab2158
134a79578567
142685433aa8
1514dc98bc35
hexbe36ab154

51060060500 has 48 divisors (see below), whose sum is σ = 111547957248. Its totient is φ = 20418020000.

The previous prime is 51060060487. The next prime is 51060060517. The reversal of 51060060500 is 506006015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1942445 + ... + 1968555.

It is an arithmetic number, because the mean of its divisors is an integer number (2323915776).

Almost surely, 251060060500 is an apocalyptic number.

51060060500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51060060500 is an abundant number, since it is smaller than the sum of its proper divisors (60487896748).

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

51060060500 is a wasteful number, since it uses less digits than its factorization.

51060060500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30041 (or 30029 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 51060060500 its reverse (506006015), we get a palindrome (51566066515).

The spelling of 51060060500 in words is "fifty-one billion, sixty million, sixty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 3911 7822 15644 19555 26111 39110 52222 78220 97775 104444 130555 195550 261110 391100 488875 522220 652775 977750 1305550 1955500 2611100 3263875 6527750 13055500 102120121 204240242 408480484 510600605 1021201210 2042402420 2553003025 5106006050 10212012100 12765015125 25530030250 51060060500