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30510401425 = 527174345151
BaseRepresentation
bin11100011010100011…
…111100011110010001
32220202022200222111121
4130122203330132101
5444441130321200
622003303442241
72130035063440
oct343243743621
986668628447
1030510401425
1111a37365199
125ab5a56381
132b5304c68a
14169614ad57
15bd8848e1a
hex71a8fc791

30510401425 has 12 divisors (see below), whose sum is σ = 43237597696. Its totient is φ = 20921418000.

The previous prime is 30510401423. The next prime is 30510401443. The reversal of 30510401425 is 52410401503.

It is a happy number.

It is not a de Polignac number, because 30510401425 - 21 = 30510401423 is a prime.

It is a super-2 number, since 2×305104014252 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30510401425.

It is not an unprimeable number, because it can be changed into a prime (30510401423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87172401 + ... + 87172750.

Almost surely, 230510401425 is an apocalyptic number.

30510401425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30510401425 is a deficient number, since it is larger than the sum of its proper divisors (12727196271).

30510401425 is a wasteful number, since it uses less digits than its factorization.

30510401425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174345168 (or 174345163 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 30510401425 its reverse (52410401503), we get a palindrome (82920802928).

The spelling of 30510401425 in words is "thirty billion, five hundred ten million, four hundred one thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 174345151 871725755 1220416057 4358628775 6102080285 30510401425