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40178141 = 198272557
BaseRepresentation
bin1001100101000…
…1000111011101
32210121021001022
42121101013131
540241200031
63553053525
7665336303
oct231210735
983537038
1040178141
1120752483
12115572a5
138429963
14549c273
1537d997b
hex26511dd

40178141 has 8 divisors (see below), whose sum is σ = 42360480. Its totient is φ = 38002608.

The previous prime is 40178129. The next prime is 40178143. The reversal of 40178141 is 14187104.

40178141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40178141 - 210 = 40177117 is a prime.

It is a super-2 number, since 2×401781412 = 3228566028431762, which contains 22 as substring.

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 40178141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40178143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14435 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (5295060).

Almost surely, 240178141 is an apocalyptic number.

It is an amenable number.

40178141 is a deficient number, since it is larger than the sum of its proper divisors (2182339).

40178141 is a wasteful number, since it uses less digits than its factorization.

40178141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 40178141 is about 6338.6229577093. The cubic root of 40178141 is about 342.5021322261.

The spelling of 40178141 in words is "forty million, one hundred seventy-eight thousand, one hundred forty-one".

Divisors: 1 19 827 2557 15713 48583 2114639 40178141