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1400030 = 25191733
BaseRepresentation
bin101010101110011011110
32122010110222
411111303132
5324300110
650001342
714620502
oct5256336
92563428
101400030
11876955
12576252
133a0328
14286302
151c9c55
hex155cde

1400030 has 16 divisors (see below), whose sum is σ = 2536704. Its totient is φ = 556320.

The previous prime is 1400029. The next prime is 1400039. The reversal of 1400030 is 300041.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1399990 and 1400017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544 + ... + 2276.

It is an arithmetic number, because the mean of its divisors is an integer number (158544).

21400030 is an apocalyptic number.

1400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400030 is a deficient number, since it is larger than the sum of its proper divisors (1136674).

1400030 is a wasteful number, since it uses less digits than its factorization.

1400030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1400030 is about 1183.2286338658. The cubic root of 1400030 is about 111.8696932660.

Adding to 1400030 its reverse (300041), we get a palindrome (1700071).

The spelling of 1400030 in words is "one million, four hundred thousand, thirty".

Divisors: 1 2 5 10 191 382 733 955 1466 1910 3665 7330 140003 280006 700015 1400030