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750042 = 23241669
BaseRepresentation
bin10110111000111011010
31102002212100
42313013122
5143000132
624024230
76242466
oct2670732
91362770
10750042
11472577
12302076
13203517
141574a6
15ec37c
hexb71da

750042 has 12 divisors (see below), whose sum is σ = 1625130. Its totient is φ = 250008.

The previous prime is 750037. The next prime is 750059. The reversal of 750042 is 240057.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 720801 + 29241 = 849^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 41669 = 750042 / (7 + 5 + 0 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 749997 and 750024.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 750042.

It is an unprimeable number.

750042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20817 + ... + 20852.

2750042 is an apocalyptic number.

750042 is an abundant number, since it is smaller than the sum of its proper divisors (875088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

750042 is a wasteful number, since it uses less digits than its factorization.

750042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41677 (or 41674 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 750042 is about 866.0496521563. The cubic root of 750042 is about 90.8577255892.

Adding to 750042 its reverse (240057), we get a palindrome (990099).

The spelling of 750042 in words is "seven hundred fifty thousand, forty-two".

Divisors: 1 2 3 6 9 18 41669 83338 125007 250014 375021 750042