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30471202501 = 41743200061
BaseRepresentation
bin11100011000001110…
…011010011011000101
32220122120221110200121
4130120032122123011
5444401111440001
621555343341541
72126050643035
oct343016323305
986576843617
1030471202501
1111a17221493
125aa48b18b1
132b47ba664c
141690c658c5
15bd51a46a1
hex71839a6c5

30471202501 has 4 divisors (see below), whose sum is σ = 31214402604. Its totient is φ = 29728002400.

The previous prime is 30471202471. The next prime is 30471202507. The reversal of 30471202501 is 10520217403.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3179832100 + 27291370401 = 56390^2 + 165201^2 .

It is a cyclic number.

It is not a de Polignac number, because 30471202501 - 211 = 30471200453 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 (30471202507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371599990 + ... + 371600071.

It is an arithmetic number, because the mean of its divisors is an integer number (7803600651).

Almost surely, 230471202501 is an apocalyptic number.

It is an amenable number.

30471202501 is a deficient number, since it is larger than the sum of its proper divisors (743200103).

30471202501 is an equidigital number, since it uses as much as digits as its factorization.

30471202501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743200102.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 30471202501 its reverse (10520217403), we get a palindrome (40991419904).

The spelling of 30471202501 in words is "thirty billion, four hundred seventy-one million, two hundred two thousand, five hundred one".

Divisors: 1 41 743200061 30471202501