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13123203313132 = 22114326925784959
BaseRepresentation
bin1011111011110111101111…
…0111110010110111101100
31201110120021121021022022001
42332331323313302313230
53210002310022010012
643524414423102044
72523056132443213
oct276757367626754
951416247238261
1013123203313132
1141aa579170440
12157b4462a1924
13742688701333
1433524897a07a
1517b570992357
hexbef7bdf2dec

13123203313132 has 48 divisors (see below), whose sum is σ = 25731327283200. Its totient is φ = 5804709744960.

The previous prime is 13123203313081. The next prime is 13123203313223. The reversal of 13123203313132 is 23131330232131.

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 13123203313132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12383532 + ... + 13401427.

It is an arithmetic number, because the mean of its divisors is an integer number (536069318400).

Almost surely, 213123203313132 is an apocalyptic number.

It is an amenable number.

13123203313132 is a deficient number, since it is larger than the sum of its proper divisors (12608123970068).

13123203313132 is a wasteful number, since it uses less digits than its factorization.

13123203313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25785286 (or 25785284 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13123203313132 its reverse (23131330232131), we get a palindrome (36254533545263).

The spelling of 13123203313132 in words is "thirteen trillion, one hundred twenty-three billion, two hundred three million, three hundred thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 43 44 86 172 269 473 538 946 1076 1892 2959 5918 11567 11836 23134 46268 127237 254474 508948 25784959 51569918 103139836 283634549 567269098 1108753237 1134538196 2217506474 4435012948 6936153971 12196285607 13872307942 24392571214 27744615884 48785142428 76297693681 152595387362 298254620753 305190774724 596509241506 1193018483012 3280800828283 6561601656566 13123203313132