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30132045451 = 1964310872269
BaseRepresentation
bin11100000100000000…
…101000011010001011
32212202221202111200101
4130010000220122023
5443202300423301
621501550150231
72114462106004
oct340400503213
985687674611
1030132045451
1111862832802
125a0b1b2377
132ac28488c1
14165bbbc1ab
15bb550d701
hex70402868b

30132045451 has 16 divisors (see below), whose sum is σ = 31810508800. Its totient is φ = 28462982688.

The previous prime is 30132045443. The next prime is 30132045469. The reversal of 30132045451 is 15454023103.

It is a cyclic number.

It is not a de Polignac number, because 30132045451 - 23 = 30132045443 is a prime.

It is a super-2 number, since 2×301320454512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30132045481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13278745 + ... + 13281013.

It is an arithmetic number, because the mean of its divisors is an integer number (1988156800).

Almost surely, 230132045451 is an apocalyptic number.

30132045451 is a deficient number, since it is larger than the sum of its proper divisors (1678463349).

30132045451 is a wasteful number, since it uses less digits than its factorization.

30132045451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30132045451 its reverse (15454023103), we get a palindrome (45586068554).

The spelling of 30132045451 in words is "thirty billion, one hundred thirty-two million, forty-five thousand, four hundred fifty-one".

Divisors: 1 19 643 1087 2269 12217 20653 43111 698941 1458967 2466403 13279879 27720373 46861657 1585897129 30132045451