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13125413434220 = 2251945307762367
BaseRepresentation
bin1011111011111111111110…
…0110101111001101101100
31201110202222122000002110122
42332333333212233031230
53210021321314343340
643525422013424112
72523164660245013
oct276777746571554
951422878002418
1013125413434220
11420050278309a
12157b96249b038
1374294b5676a9
143353b82cda7a
1517b64ea0cdb5
hexbefff9af36c

13125413434220 has 48 divisors (see below), whose sum is σ = 29014750248960. Its totient is φ = 4973724575424.

The previous prime is 13125413434151. The next prime is 13125413434307. The reversal of 13125413434220 is 2243431452131.

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, 16835477 + ... + 17597843.

It is an arithmetic number, because the mean of its divisors is an integer number (604473963520).

Almost surely, 213125413434220 is an apocalyptic number.

13125413434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125413434220 is an abundant number, since it is smaller than the sum of its proper divisors (15889336814740).

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

13125413434220 is a wasteful number, since it uses less digits than its factorization.

13125413434220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807702 (or 807700 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 13125413434220 its reverse (2243431452131), we get a palindrome (15368844886351).

The spelling of 13125413434220 in words is "thirteen trillion, one hundred twenty-five billion, four hundred thirteen million, four hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 45307 90614 181228 226535 453070 762367 860833 906140 1524734 1721666 3049468 3443332 3811835 4304165 7623670 8608330 14484973 15247340 17216660 28969946 57939892 72424865 144849730 289699460 34540561669 69081123338 138162246676 172702808345 345405616690 656270671711 690811233380 1312541343422 2625082686844 3281353358555 6562706717110 13125413434220