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66031514 = 233015757
BaseRepresentation
bin1111101111100…
…0111110011010
311121020202012122
43323320332122
5113401002024
610315141242
71431154463
oct373707632
9147222178
1066031514
11343004aa
121a144822
13108ac403
148aabd6a
155be4d5e
hex3ef8f9a

66031514 has 4 divisors (see below), whose sum is σ = 99047274. Its totient is φ = 33015756.

The previous prime is 66031507. The next prime is 66031523. The reversal of 66031514 is 41513066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37761025 + 28270489 = 6145^2 + 5317^2 .

It is a super-2 number, since 2×660315142 = 8720321682264392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16507877 + ... + 16507880.

Almost surely, 266031514 is an apocalyptic number.

66031514 is a deficient number, since it is larger than the sum of its proper divisors (33015760).

66031514 is a wasteful number, since it uses less digits than its factorization.

66031514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33015759.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66031514 is about 8125.9777257878. The cubic root of 66031514 is about 404.1883128568.

The spelling of 66031514 in words is "sixty-six million, thirty-one thousand, five hundred fourteen".

Divisors: 1 2 33015757 66031514