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30274745 = 515140099
BaseRepresentation
bin111001101111…
…1010010111001
32002222010010212
41303133102321
530222242440
63000520505
7515221364
oct163372271
962863125
1030274745
11160a8956
12a180135
136370067
1440410db
1529d0465
hex1cdf4b9

30274745 has 8 divisors (see below), whose sum is σ = 36571200. Its totient is φ = 24058800.

The previous prime is 30274711. The next prime is 30274747. The reversal of 30274745 is 54747203.

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

It is not a de Polignac number, because 30274745 - 26 = 30274681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30274747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19295 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (4571400).

Almost surely, 230274745 is an apocalyptic number.

It is an amenable number.

30274745 is a deficient number, since it is larger than the sum of its proper divisors (6296455).

30274745 is a wasteful number, since it uses less digits than its factorization.

30274745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40255.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 30274745 is about 5502.2490856013. The cubic root of 30274745 is about 311.6689213458.

The spelling of 30274745 in words is "thirty million, two hundred seventy-four thousand, seven hundred forty-five".

Divisors: 1 5 151 755 40099 200495 6054949 30274745