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66750076 = 2296717257
BaseRepresentation
bin1111111010100…
…0011001111100
311122121020220001
43332220121330
5114042000301
610342404044
71440236431
oct376503174
9148536801
1066750076
1134751358
121a430624
1310aa14b3
148c17b88
155cd7c01
hex3fa867c

66750076 has 12 divisors (see below), whose sum is σ = 116940208. Its totient is φ = 33338592.

The previous prime is 66750053. The next prime is 66750113. The reversal of 66750076 is 67005766.

It is a super-3 number, since 3×667500763 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4761 + ... + 12496.

Almost surely, 266750076 is an apocalyptic number.

It is an amenable number.

66750076 is a deficient number, since it is larger than the sum of its proper divisors (50190132).

66750076 is a wasteful number, since it uses less digits than its factorization.

66750076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18228 (or 18226 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 66750076 is about 8170.0719703072. The cubic root of 66750076 is about 405.6491667008.

The spelling of 66750076 in words is "sixty-six million, seven hundred fifty thousand, seventy-six".

Divisors: 1 2 4 967 1934 3868 17257 34514 69028 16687519 33375038 66750076