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30013689803 = 283106055441
BaseRepresentation
bin11011111100111101…
…001000111111001011
32212110201001102020212
4123330331020333023
5442432001033203
621442121311335
72111524103546
oct337475107713
985421042225
1030013689803
1111801a44419
12599763554b
132aa4179286
14164a1ad85d
15ba9e301d8
hex6fcf48fcb

30013689803 has 4 divisors (see below), whose sum is σ = 30119745528. Its totient is φ = 29907634080.

The previous prime is 30013689791. The next prime is 30013689821. The reversal of 30013689803 is 30898631003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30898631003 = 191626243737.

It is a cyclic number.

It is not a de Polignac number, because 30013689803 - 212 = 30013685707 is a prime.

It is a super-3 number, since 3×300136898033 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30013689863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53027438 + ... + 53028003.

It is an arithmetic number, because the mean of its divisors is an integer number (7529936382).

Almost surely, 230013689803 is an apocalyptic number.

30013689803 is a deficient number, since it is larger than the sum of its proper divisors (106055725).

30013689803 is a wasteful number, since it uses less digits than its factorization.

30013689803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106055724.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 30013689803 in words is "thirty billion, thirteen million, six hundred eighty-nine thousand, eight hundred three".

Divisors: 1 283 106055441 30013689803