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13210155434 = 272038946279
BaseRepresentation
bin11000100110110001…
…01111100110101010
31021002122020102112002
430103120233212222
5204023244433214
610022455251002
7645234316460
oct142330574652
937078212462
1013210155434
115669874333
122688079a62
131326aa3528
148d4632830
15524b151de
hex31362f9aa

13210155434 has 16 divisors (see below), whose sum is σ = 22647580800. Its totient is φ = 5661095184.

The previous prime is 13210155421. The next prime is 13210155437. The reversal of 13210155434 is 43455101231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13210155397 and 13210155406.

It is not an unprimeable number, because it can be changed into a prime (13210155437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262307 + ... + 308585.

It is an arithmetic number, because the mean of its divisors is an integer number (1415473800).

Almost surely, 213210155434 is an apocalyptic number.

13210155434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13210155434 is a deficient number, since it is larger than the sum of its proper divisors (9437425366).

13210155434 is a wasteful number, since it uses less digits than its factorization.

13210155434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66677.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13210155434 its reverse (43455101231), we get a palindrome (56665256665).

The spelling of 13210155434 in words is "thirteen billion, two hundred ten million, one hundred fifty-five thousand, four hundred thirty-four".

Divisors: 1 2 7 14 20389 40778 46279 92558 142723 285446 323953 647906 943582531 1887165062 6605077717 13210155434