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13121001210 = 235437366707
BaseRepresentation
bin11000011100001001…
…01001011011111010
31020212102110220220210
430032010221123322
5203332434014320
610005552331550
7643102445562
oct141604513372
936772426823
1013121001210
115623510459
122662243bb6
131311489555
148c6865da2
1551bda40e0
hex30e1296fa

13121001210 has 16 divisors (see below), whose sum is σ = 31490402976. Its totient is φ = 3498933648.

The previous prime is 13121001169. The next prime is 13121001221. The reversal of 13121001210 is 1210012131.

13121001210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218683324 + ... + 218683383.

It is an arithmetic number, because the mean of its divisors is an integer number (1968150186).

Almost surely, 213121001210 is an apocalyptic number.

13121001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121001210 is an abundant number, since it is smaller than the sum of its proper divisors (18369401766).

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

13121001210 is a wasteful number, since it uses less digits than its factorization.

13121001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437366717.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 13121001210 its reverse (1210012131), we get a palindrome (14331013341).

The spelling of 13121001210 in words is "thirteen billion, one hundred twenty-one million, one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 437366707 874733414 1312100121 2186833535 2624200242 4373667070 6560500605 13121001210