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400142 = 2296899
BaseRepresentation
bin1100001101100001110
3202022220002
41201230032
5100301032
612324302
73254411
oct1415416
9668802
10400142
112536a6
12173692
13110192
14a5b78
157d862
hex61b0e

400142 has 8 divisors (see below), whose sum is σ = 621000. Its totient is φ = 193144.

The previous prime is 400123. The next prime is 400151. The reversal of 400142 is 241004.

Adding to 400142 its reverse (241004), we get a palindrome (641146).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4001422 = 320227240328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (77625).

2400142 is an apocalyptic number.

400142 is a deficient number, since it is larger than the sum of its proper divisors (220858).

400142 is a wasteful number, since it uses less digits than its factorization.

400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 400142 is about 632.5677829292. The cubic root of 400142 is about 73.6893478158.

The spelling of 400142 in words is "four hundred thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 29 58 6899 13798 200071 400142