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30014278 = 272143877
BaseRepresentation
bin111001001111…
…1101101000110
32002110212211221
41302133231012
530140424103
62551150554
7513055120
oct162375506
962425757
1030014278
1115a40198
12a07545a
1362ab638
143db4210
15297d1bd
hex1c9fb46

30014278 has 8 divisors (see below), whose sum is σ = 51453072. Its totient is φ = 12863256.

The previous prime is 30014267. The next prime is 30014279. The reversal of 30014278 is 87241003.

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

It is a super-2 number, since 2×300142782 = 1801713767722568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30014279) 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, 1071925 + ... + 1071952.

It is an arithmetic number, because the mean of its divisors is an integer number (6431634).

Almost surely, 230014278 is an apocalyptic number.

30014278 is a deficient number, since it is larger than the sum of its proper divisors (21438794).

30014278 is a wasteful number, since it uses less digits than its factorization.

30014278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143886.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 30014278 is about 5478.5288171187. The cubic root of 30014278 is about 310.7725372946.

The spelling of 30014278 in words is "thirty million, fourteen thousand, two hundred seventy-eight".

Divisors: 1 2 7 14 2143877 4287754 15007139 30014278