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30152807 = 113266839
BaseRepresentation
bin111001100000…
…1100001100111
32002201220212122
41303001201213
530204342212
62554140155
7514203026
oct163014147
962656778
1030152807
1116025283
12a12165b
1363296c9
14400c8bd
1529a9272
hex1cc1867

30152807 has 4 divisors (see below), whose sum is σ = 30419760. Its totient is φ = 29885856.

The previous prime is 30152767. The next prime is 30152809. The reversal of 30152807 is 70825103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30152807 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152809) 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, 133307 + ... + 133532.

It is an arithmetic number, because the mean of its divisors is an integer number (7604940).

Almost surely, 230152807 is an apocalyptic number.

30152807 is a deficient number, since it is larger than the sum of its proper divisors (266953).

30152807 is a wasteful number, since it uses less digits than its factorization.

30152807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266952.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 30152807 is about 5491.1571640229. The cubic root of 30152807 is about 311.2499205927.

The spelling of 30152807 in words is "thirty million, one hundred fifty-two thousand, eight hundred seven".

Divisors: 1 113 266839 30152807