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135218701401 = 3717413698441
BaseRepresentation
bin111110111101110101…
…0011010010001011001
3110221000121211202002220
41331323222122101121
54203411441421101
6142041342014253
712524562666150
oct1757352322131
9427017752086
10135218701401
11523894827a3
1222258577389
13c99c137a24
14678a61a597
1537b60ba636
hex1f7ba9a459

135218701401 has 16 divisors (see below), whose sum is σ = 206165950848. Its totient is φ = 77223427200.

The previous prime is 135218701381. The next prime is 135218701487. The reversal of 135218701401 is 104107812531.

It is not a de Polignac number, because 135218701401 - 211 = 135218699353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135218701201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1812660 + ... + 1885781.

It is an arithmetic number, because the mean of its divisors is an integer number (12885371928).

Almost surely, 2135218701401 is an apocalyptic number.

It is an amenable number.

135218701401 is a deficient number, since it is larger than the sum of its proper divisors (70947249447).

135218701401 is a wasteful number, since it uses less digits than its factorization.

135218701401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700192.

The product of its (nonzero) digits is 6720, while the sum is 33.

The spelling of 135218701401 in words is "one hundred thirty-five billion, two hundred eighteen million, seven hundred one thousand, four hundred one".

Divisors: 1 3 7 21 1741 5223 12187 36561 3698441 11095323 25889087 77667261 6438985781 19316957343 45072900467 135218701401