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30280310 = 253028031
BaseRepresentation
bin111001110000…
…0101001110110
32002222101202222
41303200221312
530222432220
63001002342
7515243534
oct163405166
962871688
1030280310
1116102055
12a1833b2
136372758
144043154
1529d1e25
hex1ce0a76

30280310 has 8 divisors (see below), whose sum is σ = 54504576. Its totient is φ = 12112120.

The previous prime is 30280303. The next prime is 30280333. The reversal of 30280310 is 1308203.

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

It is a super-2 number, since 2×302803102 = 1833794347392200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514006 + ... + 1514025.

It is an arithmetic number, because the mean of its divisors is an integer number (6813072).

Almost surely, 230280310 is an apocalyptic number.

30280310 is a deficient number, since it is larger than the sum of its proper divisors (24224266).

30280310 is a wasteful number, since it uses less digits than its factorization.

30280310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028038.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30280310 is about 5502.7547646611. The cubic root of 30280310 is about 311.6880168139.

Adding to 30280310 its reverse (1308203), we get a palindrome (31588513).

The spelling of 30280310 in words is "thirty million, two hundred eighty thousand, three hundred ten".

Divisors: 1 2 5 10 3028031 6056062 15140155 30280310