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30216070 = 2526311489
BaseRepresentation
bin111001101000…
…0111110000110
32002212010122201
41303100332012
530213403240
62555345114
7514555333
oct163207606
962763581
1030216070
1116068865
12a15219a
13634c441
14402798a
1529bcd9a
hex1cd0f86

30216070 has 16 divisors (see below), whose sum is σ = 54600480. Its totient is φ = 12039424.

The previous prime is 30216049. The next prime is 30216077. The reversal of 30216070 is 7061203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216077) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3115 + ... + 8374.

It is an arithmetic number, because the mean of its divisors is an integer number (3412530).

Almost surely, 230216070 is an apocalyptic number.

30216070 is a deficient number, since it is larger than the sum of its proper divisors (24384410).

30216070 is a wasteful number, since it uses less digits than its factorization.

30216070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11759.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 30216070 is about 5496.9145891127. The cubic root of 30216070 is about 311.4674442761.

Adding to 30216070 its reverse (7061203), we get a palindrome (37277273).

The spelling of 30216070 in words is "thirty million, two hundred sixteen thousand, seventy".

Divisors: 1 2 5 10 263 526 1315 2630 11489 22978 57445 114890 3021607 6043214 15108035 30216070