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30456671045 = 517245912
BaseRepresentation
bin11100010111010110…
…111110101101000101
32220121120121012021112
4130113112332231011
5444333401433140
621554104054405
72125513301213
oct342726765505
986546535245
1030456671045
1111a09aa6819
125a9ba64405
132b44b89358
14168cd61cb3
15bd3c83c65
hex7175beb45

30456671045 has 18 divisors (see below), whose sum is σ = 38832810066. Its totient is φ = 22927086720.

The previous prime is 30456671033. The next prime is 30456671057. The reversal of 30456671045 is 54017665403.

It is an interprime number because it is at equal distance from previous prime (30456671033) and next prime (30456671057).

It can be written as a sum of positive squares in 3 ways, for example, as 10201404004 + 20255267041 = 101002^2 + 142321^2 .

It is not a de Polignac number, because 30456671045 - 210 = 30456670021 is a prime.

It is a super-2 number, since 2×304566710452 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30456670993 and 30456671011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6631700 + ... + 6636290.

It is an arithmetic number, because the mean of its divisors is an integer number (2157378337).

Almost surely, 230456671045 is an apocalyptic number.

It is an amenable number.

30456671045 is a deficient number, since it is larger than the sum of its proper divisors (8376139021).

30456671045 is an frugal number, since it uses more digits than its factorization.

30456671045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 30456671045 in words is "thirty billion, four hundred fifty-six million, six hundred seventy-one thousand, forty-five".

Divisors: 1 5 17 85 289 1445 4591 22955 78047 390235 1326799 6633995 21077281 105386405 358313777 1791568885 6091334209 30456671045