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66949062 = 23101110477
BaseRepresentation
bin1111111101100…
…0111111000110
311122222100211220
43333120333012
5114114332222
610350541210
71442025525
oct377307706
9148870756
1066949062
1134877904
121a507806
1310b40c3b
148c6a4bc
155d26b5c
hex3fd8fc6

66949062 has 16 divisors (see below), whose sum is σ = 135225072. Its totient is φ = 22095200.

The previous prime is 66949061. The next prime is 66949063. The reversal of 66949062 is 26094966.

It is an interprime number because it is at equal distance from previous prime (66949061) and next prime (66949063).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66949061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54633 + ... + 55844.

It is an arithmetic number, because the mean of its divisors is an integer number (8451567).

Almost surely, 266949062 is an apocalyptic number.

66949062 is an abundant number, since it is smaller than the sum of its proper divisors (68276010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66949062 is a wasteful number, since it uses less digits than its factorization.

66949062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110583.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 66949062 is about 8182.2406466689. The cubic root of 66949062 is about 406.0518550250.

The spelling of 66949062 in words is "sixty-six million, nine hundred forty-nine thousand, sixty-two".

Divisors: 1 2 3 6 101 202 303 606 110477 220954 331431 662862 11158177 22316354 33474531 66949062