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400231041 = 3773261077
BaseRepresentation
bin10111110110110…
…000101010000001
31000220002211202220
4113312300222001
51304424343131
6103414201253
712626623230
oct2766605201
91026084686
10400231041
11195a13561
12b2053229
1364bc2802
143b224b17
152520be96
hex17db0a81

400231041 has 16 divisors (see below), whose sum is σ = 618232704. Its totient is φ = 225569664.

The previous prime is 400231019. The next prime is 400231093. The reversal of 400231041 is 140132004.

It is not a de Polignac number, because 400231041 - 25 = 400231009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400231041.

It is not an unprimeable number, because it can be changed into a prime (400231841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129006 + ... + 132071.

It is an arithmetic number, because the mean of its divisors is an integer number (38639544).

Almost surely, 2400231041 is an apocalyptic number.

It is an amenable number.

400231041 is a deficient number, since it is larger than the sum of its proper divisors (218001663).

400231041 is a wasteful number, since it uses less digits than its factorization.

400231041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261160.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 400231041 is about 20005.7751911792. The cubic root of 400231041 is about 736.9481328108.

Adding to 400231041 its reverse (140132004), we get a palindrome (540363045).

The spelling of 400231041 in words is "four hundred million, two hundred thirty-one thousand, forty-one".

Divisors: 1 3 7 21 73 219 511 1533 261077 783231 1827539 5482617 19058621 57175863 133410347 400231041