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30355002 = 2321686389
BaseRepresentation
bin111001111001…
…0111000111010
32010010012020100
41303302320322
530232330002
63002340230
7516004356
oct163627072
963105210
1030355002
1116153187
12a1ba676
13639a752
144062466
1529e911c
hex1cf2e3a

30355002 has 12 divisors (see below), whose sum is σ = 65769210. Its totient is φ = 10118328.

The previous prime is 30354977. The next prime is 30355019. The reversal of 30355002 is 20055303.

It can be written as a sum of positive squares in only one way, i.e., 29713401 + 641601 = 5451^2 + 801^2 .

It is a super-2 number, since 2×303550022 = 1842852292840008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1686389 = 30355002 / (3 + 0 + 3 + 5 + 5 + 0 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 843177 + ... + 843212.

Almost surely, 230355002 is an apocalyptic number.

30355002 is an abundant number, since it is smaller than the sum of its proper divisors (35414208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30355002 is a wasteful number, since it uses less digits than its factorization.

30355002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686397 (or 1686394 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30355002 is about 5509.5373671480. The cubic root of 30355002 is about 311.9440851475.

The spelling of 30355002 in words is "thirty million, three hundred fifty-five thousand, two".

Divisors: 1 2 3 6 9 18 1686389 3372778 5059167 10118334 15177501 30355002