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61430302 = 233319221
BaseRepresentation
bin1110101001010…
…1101000011110
311021120222112101
43222111220132
5111211232202
610032355314
71344102043
oct352255036
9137528471
1061430302
113174854a
12186a5b3a
13c95acbb
1482311ca
1555d6887
hex3a95a1e

61430302 has 8 divisors (see below), whose sum is σ = 92183112. Its totient is φ = 30702600.

The previous prime is 61430297. The next prime is 61430351. The reversal of 61430302 is 20303416.

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

It is a super-2 number, since 2×614303022 = 7547364007622408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61430302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052 + ... + 11272.

It is an arithmetic number, because the mean of its divisors is an integer number (11522889).

Almost surely, 261430302 is an apocalyptic number.

61430302 is a deficient number, since it is larger than the sum of its proper divisors (30752810).

61430302 is a wasteful number, since it uses less digits than its factorization.

61430302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 61430302 is about 7837.7485287549. The cubic root of 61430302 is about 394.5731692338.

Adding to 61430302 its reverse (20303416), we get a palindrome (81733718).

The spelling of 61430302 in words is "sixty-one million, four hundred thirty thousand, three hundred two".

Divisors: 1 2 3331 6662 9221 18442 30715151 61430302