Search a number
-
+
40873757 = 197207481
BaseRepresentation
bin1001101111101…
…0111100011101
32211220121020212
42123322330131
540430430012
64020022205
71004264321
oct233727435
984817225
1040873757
1121088071
1211831965
138611472
1455dd981
1538c5b22
hex26faf1d

40873757 has 4 divisors (see below), whose sum is σ = 41081436. Its totient is φ = 40666080.

The previous prime is 40873741. The next prime is 40873771. The reversal of 40873757 is 75737804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26327161 + 14546596 = 5131^2 + 3814^2 .

It is a cyclic number.

It is not a de Polignac number, because 40873757 - 24 = 40873741 is a prime.

It is a super-2 number, since 2×408737572 = 3341328022590098, 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 (40873727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103544 + ... + 103937.

It is an arithmetic number, because the mean of its divisors is an integer number (10270359).

Almost surely, 240873757 is an apocalyptic number.

It is an amenable number.

40873757 is a deficient number, since it is larger than the sum of its proper divisors (207679).

40873757 is a wasteful number, since it uses less digits than its factorization.

40873757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207678.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 40873757 is about 6393.2587152406. The cubic root of 40873757 is about 344.4674469280.

The spelling of 40873757 in words is "forty million, eight hundred seventy-three thousand, seven hundred fifty-seven".

Divisors: 1 197 207481 40873757