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40402235102423 = 163494350144947
BaseRepresentation
bin10010010111110111000001…
…10111110001010011010111
312022001102020020020100102112
421023323200313301103113
520243422234141234143
6221532310334301235
711336652023023235
oct1113734067612327
9168042206210375
1040402235102423
1111967545481a57
12464628295781b
131970bb6ca79cc
149d969b455955
154a0e4c967e18
hex24bee0df14d7

40402235102423 has 8 divisors (see below), whose sum is σ = 40658326157568. Its totient is φ = 40146244347384.

The previous prime is 40402235102419. The next prime is 40402235102519. The reversal of 40402235102423 is 32420153220404.

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 40402235102423 - 22 = 40402235102419 is a prime.

It is a super-3 number, since 3×404022351024233 (a number of 42 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 self number, because there is not a number n which added to its sum of digits gives 40402235102423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402235102413) 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, 24266765 + ... + 25878182.

It is an arithmetic number, because the mean of its divisors is an integer number (5082290769696).

Almost surely, 240402235102423 is an apocalyptic number.

40402235102423 is a deficient number, since it is larger than the sum of its proper divisors (256091055145).

40402235102423 is a wasteful number, since it uses less digits than its factorization.

40402235102423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50150053.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 40402235102423 its reverse (32420153220404), we get a palindrome (72822388322827).

The spelling of 40402235102423 in words is "forty trillion, four hundred two billion, two hundred thirty-five million, one hundred two thousand, four hundred twenty-three".

Divisors: 1 163 4943 805709 50144947 8173626361 247866473021 40402235102423