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66010157 = 1813471051
BaseRepresentation
bin1111101111001…
…1110000101101
311121012122220122
43323303300231
5113344311112
610314454325
71431035303
oct373636055
9147178818
1066010157
1134296454
121a1343a5
13108a2785
148aa4273
155bdd872
hex3ef3c2d

66010157 has 8 divisors (see below), whose sum is σ = 66629472. Its totient is φ = 65394000.

The previous prime is 66010151. The next prime is 66010159. The reversal of 66010157 is 75101066.

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

It is a cyclic number.

It is not a de Polignac number, because 66010157 - 26 = 66010093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66010151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62282 + ... + 63332.

It is an arithmetic number, because the mean of its divisors is an integer number (8328684).

Almost surely, 266010157 is an apocalyptic number.

It is an amenable number.

66010157 is a deficient number, since it is larger than the sum of its proper divisors (619315).

66010157 is a wasteful number, since it uses less digits than its factorization.

66010157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 66010157 is about 8124.6635007242. The cubic root of 66010157 is about 404.1447317438.

Subtracting 66010157 from its reverse (75101066), we obtain a palindrome (9090909).

The spelling of 66010157 in words is "sixty-six million, ten thousand, one hundred fifty-seven".

Divisors: 1 181 347 1051 62807 190231 364697 66010157