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30058478 = 267224317
BaseRepresentation
bin111001010101…
…0011111101110
32002120010110222
41302222133232
530143332403
62552131342
7513331022
oct162523756
962503428
1030058478
1115a7041a
12a096b52
1362c57a8
143dc6382
15298b338
hex1caa7ee

30058478 has 8 divisors (see below), whose sum is σ = 45760872. Its totient is φ = 14804856.

The previous prime is 30058477. The next prime is 30058481. The reversal of 30058478 is 87485003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30058477) 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, 112025 + ... + 112292.

It is an arithmetic number, because the mean of its divisors is an integer number (5720109).

Almost surely, 230058478 is an apocalyptic number.

30058478 is a deficient number, since it is larger than the sum of its proper divisors (15702394).

30058478 is a wasteful number, since it uses less digits than its factorization.

30058478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224386.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 30058478 is about 5482.5612627676. The cubic root of 30058478 is about 310.9250137137.

The spelling of 30058478 in words is "thirty million, fifty-eight thousand, four hundred seventy-eight".

Divisors: 1 2 67 134 224317 448634 15029239 30058478