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15040066 = 215674799
BaseRepresentation
bin111001010111…
…111001000010
31001022010002111
4321113321002
512322240231
61254205534
7241560406
oct71277102
931263074
1015040066
118542908
1250538aa
133167962
141dd7106
1514c14b1
hexe57e42

15040066 has 8 divisors (see below), whose sum is σ = 22579200. Its totient is φ = 7513668.

The previous prime is 15040063. The next prime is 15040073. The reversal of 15040066 is 66004051.

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 (15040061) 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 3 ways as a sum of consecutive naturals, for example, 735 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (2822400).

Almost surely, 215040066 is an apocalyptic number.

15040066 is a deficient number, since it is larger than the sum of its proper divisors (7539134).

15040066 is a wasteful number, since it uses less digits than its factorization.

15040066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 15040066 is about 3878.1523951490. The cubic root of 15040066 is about 246.8405927800.

The spelling of 15040066 in words is "fifteen million, forty thousand, sixty-six".

Divisors: 1 2 1567 3134 4799 9598 7520033 15040066