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30426365 = 529209837
BaseRepresentation
bin111010000010…
…0010011111101
32010020211010102
41310010103331
530242120430
63004050445
7516422414
oct164042375
963224112
1030426365
11161a1862
12a233a25
1363c4088
14408047b
152a10345
hex1d044fd

30426365 has 8 divisors (see below), whose sum is σ = 37770840. Its totient is φ = 23501632.

The previous prime is 30426337. The next prime is 30426377. The reversal of 30426365 is 56362403.

It can be written as a sum of positive squares in 4 ways, for example, as 9504889 + 20921476 = 3083^2 + 4574^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30426365 - 212 = 30422269 is a prime.

It is a super-2 number, since 2×304263652 = 1851527374226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 104774 + ... + 105063.

It is an arithmetic number, because the mean of its divisors is an integer number (4721355).

Almost surely, 230426365 is an apocalyptic number.

It is an amenable number.

30426365 is a deficient number, since it is larger than the sum of its proper divisors (7344475).

30426365 is a wasteful number, since it uses less digits than its factorization.

30426365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209871.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 30426365 is about 5516.0098803392. The cubic root of 30426365 is about 312.1883484980.

Adding to 30426365 its reverse (56362403), we get a palindrome (86788768).

The spelling of 30426365 in words is "thirty million, four hundred twenty-six thousand, three hundred sixty-five".

Divisors: 1 5 29 145 209837 1049185 6085273 30426365