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40253606131 = 192118610849
BaseRepresentation
bin100101011111010011…
…010100100011110011
310211220100021001201011
4211133103110203303
51124414410344011
630254154251351
72623344002164
oct453723244363
9124810231634
1040253606131
1116087125092
127974a26b57
133a4678846b
141d3c14576b
1510a8dce621
hex95f4d48f3

40253606131 has 4 divisors (see below), whose sum is σ = 42372217000. Its totient is φ = 38134995264.

The previous prime is 40253606117. The next prime is 40253606143. The reversal of 40253606131 is 13160635204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40253606131 - 225 = 40220051699 is a prime.

It is a super-3 number, since 3×402536061313 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40253606093 and 40253606102.

It is not an unprimeable number, because it can be changed into a prime (40253606161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059305406 + ... + 1059305443.

It is an arithmetic number, because the mean of its divisors is an integer number (10593054250).

Almost surely, 240253606131 is an apocalyptic number.

40253606131 is a deficient number, since it is larger than the sum of its proper divisors (2118610869).

40253606131 is a wasteful number, since it uses less digits than its factorization.

40253606131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118610868.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 40253606131 in words is "forty billion, two hundred fifty-three million, six hundred six thousand, one hundred thirty-one".

Divisors: 1 19 2118610849 40253606131