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64230742 = 237223459
BaseRepresentation
bin1111010100000…
…1010101010110
311110212021000101
43311001111112
5112420340432
610212404314
71406644432
oct365012526
9143767011
1064230742
1133290564
121961669a
13103cb874
14875d9c2
15598b4e7
hex3d41556

64230742 has 12 divisors (see below), whose sum is σ = 99024660. Its totient is φ = 31246056.

The previous prime is 64230731. The next prime is 64230767. The reversal of 64230742 is 24703246.

64230742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64230742.

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 5 ways as a sum of consecutive naturals, for example, 8992 + ... + 14467.

It is an arithmetic number, because the mean of its divisors is an integer number (8252055).

Almost surely, 264230742 is an apocalyptic number.

64230742 is a deficient number, since it is larger than the sum of its proper divisors (34793918).

64230742 is a wasteful number, since it uses less digits than its factorization.

64230742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23535 (or 23498 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 64230742 is about 8014.4083998758. The cubic root of 64230742 is about 400.4801359431.

Adding to 64230742 its reverse (24703246), we get a palindrome (88933988).

The spelling of 64230742 in words is "sixty-four million, two hundred thirty thousand, seven hundred forty-two".

Divisors: 1 2 37 74 1369 2738 23459 46918 867983 1735966 32115371 64230742