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105142040401 = 1012929735533
BaseRepresentation
bin110000111101011110…
…1000011011101010001
3101001101112022001121111
41201322331003131101
53210312330243101
6120145050453321
710411342411636
oct1417275033521
9331345261544
10105142040401
1140654a39172
1218463a34241
139bb7c112b8
145135d3818d
152b0589c251
hex187af43751

105142040401 has 8 divisors (see below), whose sum is σ = 106189663464. Its totient is φ = 104094547200.

The previous prime is 105142040389. The next prime is 105142040411. The reversal of 105142040401 is 104040241501.

It can be written as a sum of positive squares in 4 ways, for example, as 24556457025 + 80585583376 = 156705^2 + 283876^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 105142040401 - 235 = 70782302033 is a prime.

It is a super-2 number, since 2×1051420404012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105142040411) 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, 2941231 + ... + 2976763.

It is an arithmetic number, because the mean of its divisors is an integer number (13273707933).

Almost surely, 2105142040401 is an apocalyptic number.

It is an amenable number.

105142040401 is a deficient number, since it is larger than the sum of its proper divisors (1047623063).

105142040401 is a wasteful number, since it uses less digits than its factorization.

105142040401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64931.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 105142040401 its reverse (104040241501), we get a palindrome (209182281902).

The spelling of 105142040401 in words is "one hundred five billion, one hundred forty-two million, forty thousand, four hundred one".

Divisors: 1 101 29297 35533 2958997 3588833 1041010301 105142040401