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30400034 = 272171431
BaseRepresentation
bin111001111110…
…1111000100010
32010012111000012
41303331320202
530240300114
63003324522
7516252560
oct163757042
963174005
1030400034
1116183aa5
12a220742
1363b50b2
144074a30
152a0763e
hex1cfde22

30400034 has 8 divisors (see below), whose sum is σ = 52114368. Its totient is φ = 13028580.

The previous prime is 30400031. The next prime is 30400037. The reversal of 30400034 is 43000403.

It is an interprime number because it is at equal distance from previous prime (30400031) and next prime (30400037).

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 2171431 = 30400034 / (3 + 0 + 4 + 0 + 0 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 30399991 and 30400018.

It is not an unprimeable number, because it can be changed into a prime (30400031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085702 + ... + 1085729.

It is an arithmetic number, because the mean of its divisors is an integer number (6514296).

Almost surely, 230400034 is an apocalyptic number.

30400034 is a deficient number, since it is larger than the sum of its proper divisors (21714334).

30400034 is a wasteful number, since it uses less digits than its factorization.

30400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171440.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30400034 is about 5513.6225841093. The cubic root of 30400034 is about 312.0982664939.

Adding to 30400034 its reverse (43000403), we get a palindrome (73400437).

The spelling of 30400034 in words is "thirty million, four hundred thousand, thirty-four".

Divisors: 1 2 7 14 2171431 4342862 15200017 30400034