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30434290 = 25231131171
BaseRepresentation
bin111010000011…
…0001111110010
32010021012222221
41310012033302
530242344130
63004151254
7516454465
oct164061762
963235887
1030434290
11161a7807
12a23852a
1363c7873
1440832dc
152a1287a
hex1d063f2

30434290 has 32 divisors (see below), whose sum is σ = 57718656. Its totient is φ = 11531520.

The previous prime is 30434279. The next prime is 30434291. The reversal of 30434290 is 9243403.

It is not an unprimeable number, because it can be changed into a prime (30434291) 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 15 ways as a sum of consecutive naturals, for example, 25405 + ... + 26575.

It is an arithmetic number, because the mean of its divisors is an integer number (1803708).

Almost surely, 230434290 is an apocalyptic number.

30434290 is a deficient number, since it is larger than the sum of its proper divisors (27284366).

30434290 is a wasteful number, since it uses less digits than its factorization.

30434290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30434290 is about 5516.7281970385. The cubic root of 30434290 is about 312.2154508470.

Adding to 30434290 its reverse (9243403), we get a palindrome (39677693).

The spelling of 30434290 in words is "thirty million, four hundred thirty-four thousand, two hundred ninety".

Divisors: 1 2 5 10 23 46 113 115 226 230 565 1130 1171 2342 2599 5198 5855 11710 12995 25990 26933 53866 132323 134665 264646 269330 661615 1323230 3043429 6086858 15217145 30434290