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30314551 = 148920359
BaseRepresentation
bin111001110100…
…1000000110111
32010001010202011
41303221000313
530230031201
63001425051
7515445421
oct163510067
963033664
1030314551
1116125853
12a19b187
136385207
144051811
1529dc151
hex1ce9037

30314551 has 4 divisors (see below), whose sum is σ = 30336400. Its totient is φ = 30292704.

The previous prime is 30314549. The next prime is 30314563. The reversal of 30314551 is 15541303.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30314551 - 21 = 30314549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30314051) 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 3 ways as a sum of consecutive naturals, for example, 8691 + ... + 11668.

It is an arithmetic number, because the mean of its divisors is an integer number (7584100).

Almost surely, 230314551 is an apocalyptic number.

30314551 is a deficient number, since it is larger than the sum of its proper divisors (21849).

30314551 is a wasteful number, since it uses less digits than its factorization.

30314551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21848.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30314551 is about 5505.8651454608. The cubic root of 30314551 is about 311.8054582479.

Adding to 30314551 its reverse (15541303), we get a palindrome (45855854).

The spelling of 30314551 in words is "thirty million, three hundred fourteen thousand, five hundred fifty-one".

Divisors: 1 1489 20359 30314551