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30453427 = 145320959
BaseRepresentation
bin111010000101…
…0111010110011
32010022012020201
41310022322303
530244002202
63004420031
7516564334
oct164127263
963265221
1030453427
1116210124
12a247617
1364034a4
14408a28b
152a18387
hex1d0aeb3

30453427 has 4 divisors (see below), whose sum is σ = 30475840. Its totient is φ = 30431016.

The previous prime is 30453421. The next prime is 30453433. The reversal of 30453427 is 72435403.

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

It is an interprime number because it is at equal distance from previous prime (30453421) and next prime (30453433).

It is a cyclic number.

It is not a de Polignac number, because 30453427 - 27 = 30453299 is a prime.

It is a super-2 number, since 2×304534272 = 1854822432088658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30453395 and 30453404.

It is not an unprimeable number, because it can be changed into a prime (30453421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9027 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (7618960).

Almost surely, 230453427 is an apocalyptic number.

30453427 is a deficient number, since it is larger than the sum of its proper divisors (22413).

30453427 is a wasteful number, since it uses less digits than its factorization.

30453427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22412.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 30453427 is about 5518.4623764233. The cubic root of 30453427 is about 312.2808772152.

The spelling of 30453427 in words is "thirty million, four hundred fifty-three thousand, four hundred twenty-seven".

Divisors: 1 1453 20959 30453427