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13243103140 = 2251765737501
BaseRepresentation
bin11000101010101100…
…11011011110100100
31021011221020100021111
430111112123132210
5204110213300030
610030033354404
7646114343101
oct142526333644
937157210244
1013243103140
115686428443
122697108a04
13133086b107
148d8b6baa8
1552797262a
hex31559b7a4

13243103140 has 24 divisors (see below), whose sum is σ = 27812833272. Its totient is φ = 5296800000.

The previous prime is 13243103129. The next prime is 13243103171. The reversal of 13243103140 is 4130134231.

It can be written as a sum of positive squares in 4 ways, for example, as 25462116 + 13217641024 = 5046^2 + 114968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334390 + ... + 371890.

It is an arithmetic number, because the mean of its divisors is an integer number (1158868053).

Almost surely, 213243103140 is an apocalyptic number.

13243103140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13243103140 is an abundant number, since it is smaller than the sum of its proper divisors (14569730132).

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

13243103140 is a wasteful number, since it uses less digits than its factorization.

13243103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55167 (or 55165 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13243103140 its reverse (4130134231), we get a palindrome (17373237371).

The spelling of 13243103140 in words is "thirteen billion, two hundred forty-three million, one hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 17657 35314 37501 70628 75002 88285 150004 176570 187505 353140 375010 750020 662155157 1324310314 2648620628 3310775785 6621551570 13243103140