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64428154 = 274602011
BaseRepresentation
bin1111010111000…
…1100001111010
311111020021210221
43311301201322
5112443200104
610220530254
71411426120
oct365614172
9144207727
1064428154
113340590a
12196b098a
131046a68b
1487b1910
1559c9c54
hex3d7187a

64428154 has 8 divisors (see below), whose sum is σ = 110448288. Its totient is φ = 27612060.

The previous prime is 64428151. The next prime is 64428167. The reversal of 64428154 is 45182446.

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

It is not an unprimeable number, because it can be changed into a prime (64428151) 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, 2300992 + ... + 2301019.

It is an arithmetic number, because the mean of its divisors is an integer number (13806036).

Almost surely, 264428154 is an apocalyptic number.

64428154 is a deficient number, since it is larger than the sum of its proper divisors (46020134).

64428154 is a wasteful number, since it uses less digits than its factorization.

64428154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602020.

The product of its digits is 30720, while the sum is 34.

The square root of 64428154 is about 8026.7150192342. The cubic root of 64428154 is about 400.8900057557.

The spelling of 64428154 in words is "sixty-four million, four hundred twenty-eight thousand, one hundred fifty-four".

Divisors: 1 2 7 14 4602011 9204022 32214077 64428154