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40133197 = 133783437
BaseRepresentation
bin1001100100011…
…0001001001101
32210111222101201
42121012021031
540233230242
63552105501
7665061256
oct231061115
983458351
1040133197
1120721735
1211535291
138412370
145489b2d
1537cb4b7
hex264624d

40133197 has 8 divisors (see below), whose sum is σ = 44389016. Its totient is φ = 36044352.

The previous prime is 40133167. The next prime is 40133227. The reversal of 40133197 is 79133104.

It is an interprime number because it is at equal distance from previous prime (40133167) and next prime (40133227).

It can be written as a sum of positive squares in 4 ways, for example, as 556516 + 39576681 = 746^2 + 6291^2 .

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 40133197 - 27 = 40133069 is a prime.

It is a super-2 number, since 2×401331972 = 3221347002881618, 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 (40133117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41238 + ... + 42199.

It is an arithmetic number, because the mean of its divisors is an integer number (5548627).

Almost surely, 240133197 is an apocalyptic number.

It is an amenable number.

40133197 is a deficient number, since it is larger than the sum of its proper divisors (4255819).

40133197 is a wasteful number, since it uses less digits than its factorization.

40133197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83487.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 40133197 is about 6335.0767161890. The cubic root of 40133197 is about 342.3743748701.

The spelling of 40133197 in words is "forty million, one hundred thirty-three thousand, one hundred ninety-seven".

Divisors: 1 13 37 481 83437 1084681 3087169 40133197