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30071202 = 2372293527
BaseRepresentation
bin111001010110…
…1100110100010
32002120202221020
41302231212202
530144234302
62552310310
7513413100
oct162554642
962522836
1030071202
1115a79a37
12a0a2396
1362cb515
143dcac70
15298eebc
hex1cad9a2

30071202 has 48 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 8293152.

The previous prime is 30071201. The next prime is 30071203. The reversal of 30071202 is 20217003.

It is an interprime number because it is at equal distance from previous prime (30071201) and next prime (30071203).

It is not an unprimeable number, because it can be changed into a prime (30071201) 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 23 ways as a sum of consecutive naturals, for example, 6763 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 230071202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30071202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36197280).

30071202 is an abundant number, since it is smaller than the sum of its proper divisors (42323358).

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

30071202 is a wasteful number, since it uses less digits than its factorization.

30071202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30071202 is about 5483.7215465412. The cubic root of 30071202 is about 310.9688798932.

Adding to 30071202 its reverse (20217003), we get a palindrome (50288205).

The spelling of 30071202 in words is "thirty million, seventy-one thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 29 42 49 58 87 98 147 174 203 294 406 609 1218 1421 2842 3527 4263 7054 8526 10581 21162 24689 49378 74067 102283 148134 172823 204566 306849 345646 518469 613698 715981 1036938 1431962 2147943 4295886 5011867 10023734 15035601 30071202