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152345866 = 276172933
BaseRepresentation
bin10010001010010…
…01110100001010
3101121122222020111
421011021310022
5303000031431
623041144534
73526630021
oct1105116412
9347588214
10152345866
1178aa4782
124302b14a
13257408aa
14163398b8
15d5947b1
hex9149d0a

152345866 has 4 divisors (see below), whose sum is σ = 228518802. Its totient is φ = 76172932.

The previous prime is 152345849. The next prime is 152345881. The reversal of 152345866 is 668543251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668543251 = 1674003253.

It can be written as a sum of positive squares in only one way, i.e., 90801841 + 61544025 = 9529^2 + 7845^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38086465 + ... + 38086468.

Almost surely, 2152345866 is an apocalyptic number.

152345866 is a deficient number, since it is larger than the sum of its proper divisors (76172936).

152345866 is an equidigital number, since it uses as much as digits as its factorization.

152345866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76172935.

The product of its digits is 172800, while the sum is 40.

The square root of 152345866 is about 12342.8467542946. The cubic root of 152345866 is about 534.0848079381.

The spelling of 152345866 in words is "one hundred fifty-two million, three hundred forty-five thousand, eight hundred sixty-six".

Divisors: 1 2 76172933 152345866