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28050525050502 = 23231639871239517
BaseRepresentation
bin1100110000011000001011…
…00101001101011010000110
310200022121022022122102000210
412120030011211031122012
512134034433403104002
6135354122221220250
75623404105623313
oct630140545153206
9120277268572023
1028050525050502
118a3518512a559
123190468101686
1312861cb660b86
146cd91cc63d0a
153399d280696c
hex19830594d686

28050525050502 has 32 divisors (see below), whose sum is σ = 58540630401792. Its totient is φ = 8943583914144.

The previous prime is 28050525050467. The next prime is 28050525050507. The reversal of 28050525050502 is 20505052505082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050525050507) by changing a digit.

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, 22010448 + ... + 23249964.

It is an arithmetic number, because the mean of its divisors is an integer number (1829394700056).

Almost surely, 228050525050502 is an apocalyptic number.

28050525050502 is an abundant number, since it is smaller than the sum of its proper divisors (30490105351290).

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

28050525050502 is a wasteful number, since it uses less digits than its factorization.

28050525050502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403532.

The product of its (nonzero) digits is 200000, while the sum is 39.

Adding to 28050525050502 its reverse (20505052505082), we get a palindrome (48555577555584).

The spelling of 28050525050502 in words is "twenty-eight trillion, fifty billion, five hundred twenty-five million, fifty thousand, five hundred two".

Divisors: 1 2 3 6 23 46 69 138 163987 327974 491961 983922 1239517 2479034 3718551 3771701 7437102 7543402 11315103 22630206 28508891 57017782 85526673 171053346 203264674279 406529348558 609794022837 1219588045674 4675087508417 9350175016834 14025262525251 28050525050502