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30007051 = 67344587
BaseRepresentation
bin111001001110…
…1111100001011
32002110111221021
41302131330023
530140211201
62551053311
7513025054
oct162357413
962414837
1030007051
1115a35818
12a071237
1362a8269
143db172b
15297aea1
hex1c9df0b

30007051 has 4 divisors (see below), whose sum is σ = 30052312. Its totient is φ = 29961792.

The previous prime is 30007049. The next prime is 30007067. The reversal of 30007051 is 15070003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15070003 = 131159231.

It is a cyclic number.

It is not a de Polignac number, because 30007051 - 21 = 30007049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30007001) 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, 21621 + ... + 22966.

It is an arithmetic number, because the mean of its divisors is an integer number (7513078).

Almost surely, 230007051 is an apocalyptic number.

30007051 is a deficient number, since it is larger than the sum of its proper divisors (45261).

30007051 is an equidigital number, since it uses as much as digits as its factorization.

30007051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45260.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 30007051 is about 5477.8692025276. The cubic root of 30007051 is about 310.7475921289.

Adding to 30007051 its reverse (15070003), we get a palindrome (45077054).

The spelling of 30007051 in words is "thirty million, seven thousand, fifty-one".

Divisors: 1 673 44587 30007051