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13125201870 = 2351139773339
BaseRepresentation
bin11000011100101001…
…01010111111001110
31020212201101100010210
430032110222333032
5203340022424440
610010222343250
7643153242444
oct141624527716
936781340123
1013125201870
11562591a480
12266372ab26
1313122ca551
148c723ab94
1551c433a80
hex30e52afce

13125201870 has 32 divisors (see below), whose sum is σ = 34364165760. Its totient is φ = 3181867040.

The previous prime is 13125201863. The next prime is 13125201889. The reversal of 13125201870 is 7810252131.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 19886340 + ... + 19886999.

It is an arithmetic number, because the mean of its divisors is an integer number (1073880180).

Almost surely, 213125201870 is an apocalyptic number.

13125201870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13125201870 is an abundant number, since it is smaller than the sum of its proper divisors (21238963890).

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

13125201870 is a wasteful number, since it uses less digits than its factorization.

13125201870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39773360.

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 13125201870 in words is "thirteen billion, one hundred twenty-five million, two hundred one thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 39773339 79546678 119320017 198866695 238640034 397733390 437506729 596600085 875013458 1193200170 1312520187 2187533645 2625040374 4375067290 6562600935 13125201870