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64147030 = 256414703
BaseRepresentation
bin1111010010110…
…0111001010110
311110201000011221
43310230321112
5112410201110
610210520554
71406145403
oct364547126
9143630157
1064147030
1133233682
121959615a
131039c72c
14873b2aa
1559717da
hex3d2ce56

64147030 has 8 divisors (see below), whose sum is σ = 115464672. Its totient is φ = 25658808.

The previous prime is 64147007. The next prime is 64147037. The reversal of 64147030 is 3074146.

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

It is a super-2 number, since 2×641470302 = 8229682915641800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64146986 and 64147004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64147037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207342 + ... + 3207361.

It is an arithmetic number, because the mean of its divisors is an integer number (14433084).

Almost surely, 264147030 is an apocalyptic number.

64147030 is a deficient number, since it is larger than the sum of its proper divisors (51317642).

64147030 is a wasteful number, since it uses less digits than its factorization.

64147030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414710.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 64147030 is about 8009.1841032655. The cubic root of 64147030 is about 400.3060782306.

The spelling of 64147030 in words is "sixty-four million, one hundred forty-seven thousand, thirty".

Divisors: 1 2 5 10 6414703 12829406 32073515 64147030