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40168901 = 3111311467
BaseRepresentation
bin1001100100111…
…0110111000101
32210120210101002
42121032313011
540240401101
63552543045
7665300333
oct231166705
983523332
1040168901
1120746543
1211551a85
1384256a6
145498b53
1537d6d6b
hex264edc5

40168901 has 8 divisors (see below), whose sum is σ = 41835264. Its totient is φ = 38525760.

The previous prime is 40168883. The next prime is 40168903. The reversal of 40168901 is 10986104.

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 40168901 - 214 = 40152517 is a prime.

It is a super-2 number, since 2×401689012 = 3227081215095602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40168903) 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, 2231 + ... + 9236.

It is an arithmetic number, because the mean of its divisors is an integer number (5229408).

Almost surely, 240168901 is an apocalyptic number.

It is an amenable number.

40168901 is a deficient number, since it is larger than the sum of its proper divisors (1666363).

40168901 is a wasteful number, since it uses less digits than its factorization.

40168901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 40168901 is about 6337.8940508658. The cubic root of 40168901 is about 342.4758744795.

The spelling of 40168901 in words is "forty million, one hundred sixty-eight thousand, nine hundred one".

Divisors: 1 31 113 3503 11467 355477 1295771 40168901