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40142252683 = 1389151229769
BaseRepresentation
bin100101011000101010…
…100010101010001011
310211121120201201111101
4211120222202222023
51124202404041213
630235135442231
72620522342441
oct453052425213
9124546651441
1040142252683
111602a289645
127943686377
133a2969b050
141d2b43ab91
15109e235bdd
hex958aa2a8b

40142252683 has 16 divisors (see below), whose sum is σ = 44005550400. Its totient is φ = 36395251200.

The previous prime is 40142252663. The next prime is 40142252791. The reversal of 40142252683 is 38625224104.

It is a cyclic number.

It is not a de Polignac number, because 40142252683 - 25 = 40142252651 is a prime.

It is a super-2 number, since 2×401422526832 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40142252663) 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, 59823 + ... + 289591.

It is an arithmetic number, because the mean of its divisors is an integer number (2750346900).

Almost surely, 240142252683 is an apocalyptic number.

40142252683 is a deficient number, since it is larger than the sum of its proper divisors (3863297717).

40142252683 is a wasteful number, since it uses less digits than its factorization.

40142252683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230022.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 40142252683 its reverse (38625224104), we get a palindrome (78767476787).

The spelling of 40142252683 in words is "forty billion, one hundred forty-two million, two hundred fifty-two thousand, six hundred eighty-three".

Divisors: 1 13 89 151 1157 1963 13439 174707 229769 2986997 20449441 34695119 265842733 451036547 3087865591 40142252683