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1213425205502 = 21993048807049
BaseRepresentation
bin10001101010000101110…
…001110100000011111110
311022000001200121012201212
4101222011301310003332
5124340043323034002
62325235001204422
7153444544031606
oct21520561640376
94260050535655
101213425205502
11428679992754
12177205790712
138a56bab48a3
1442a31539c06
152186d62e352
hex11a85c740fe

1213425205502 has 8 divisors (see below), whose sum is σ = 1829284230000. Its totient is φ = 603663795504.

The previous prime is 1213425205469. The next prime is 1213425205507. The reversal of 1213425205502 is 2055025243121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213425205507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524403127 + ... + 1524403922.

It is an arithmetic number, because the mean of its divisors is an integer number (228660528750).

Almost surely, 21213425205502 is an apocalyptic number.

1213425205502 is a deficient number, since it is larger than the sum of its proper divisors (615859024498).

1213425205502 is a wasteful number, since it uses less digits than its factorization.

1213425205502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048807250.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1213425205502 in words is "one trillion, two hundred thirteen billion, four hundred twenty-five million, two hundred five thousand, five hundred two".

Divisors: 1 2 199 398 3048807049 6097614098 606712602751 1213425205502