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13105404142 = 2174726331183
BaseRepresentation
bin11000011010010010…
…01001100011101110
31020211100010111202121
430031021021203232
5203314440413032
610004234143154
7642523045225
oct141511114356
936740114677
1013105404142
115615728116
122658b81aba
13130b18820c
148c4765cbc
1551a822a97
hex30d2498ee

13105404142 has 32 divisors (see below), whose sum is σ = 21338836992. Its totient is φ = 6012887424.

The previous prime is 13105404127. The next prime is 13105404157. The reversal of 13105404142 is 24140450131.

It is an interprime number because it is at equal distance from previous prime (13105404127) and next prime (13105404157).

It is a congruent number.

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, 404683 + ... + 435865.

It is an arithmetic number, because the mean of its divisors is an integer number (666838656).

Almost surely, 213105404142 is an apocalyptic number.

13105404142 is a deficient number, since it is larger than the sum of its proper divisors (8233432850).

13105404142 is a wasteful number, since it uses less digits than its factorization.

13105404142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31512.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 13105404142 its reverse (24140450131), we get a palindrome (37245854273).

The spelling of 13105404142 in words is "thirteen billion, one hundred five million, four hundred four thousand, one hundred forty-two".

Divisors: 1 2 17 34 47 94 263 526 799 1598 4471 8942 12361 24722 31183 62366 210137 420274 530111 1060222 1465601 2931202 8201129 16402258 24915217 49830434 139419193 278838386 385453063 770906126 6552702071 13105404142