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30314542 = 215157271
BaseRepresentation
bin111001110100…
…1000000101110
32010001010201211
41303221000232
530230031132
63001425034
7515445406
oct163510056
963033654
1030314542
1116125845
12a19b17a
1363851cb
144051806
1529dc147
hex1ce902e

30314542 has 4 divisors (see below), whose sum is σ = 45471816. Its totient is φ = 15157270.

The previous prime is 30314533. The next prime is 30314549. The reversal of 30314542 is 24541303.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30314549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7578634 + ... + 7578637.

It is an arithmetic number, because the mean of its divisors is an integer number (11367954).

Almost surely, 230314542 is an apocalyptic number.

30314542 is a deficient number, since it is larger than the sum of its proper divisors (15157274).

30314542 is a wasteful number, since it uses less digits than its factorization.

30314542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15157273.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30314542 is about 5505.8643281505. The cubic root of 30314542 is about 311.8054273909.

Adding to 30314542 its reverse (24541303), we get a palindrome (54855845).

The spelling of 30314542 in words is "thirty million, three hundred fourteen thousand, five hundred forty-two".

Divisors: 1 2 15157271 30314542