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66237214 = 21011931699
BaseRepresentation
bin1111110010101…
…1001100011110
311121122012101011
43330223030132
5113424042324
610323405434
71433002261
oct374531436
9147565334
1066237214
1134430aaa
121a22387a
1310951c24
148b22cd8
155c35c94
hex3f2b31e

66237214 has 16 divisors (see below), whose sum is σ = 100918800. Its totient is φ = 32601600.

The previous prime is 66237209. The next prime is 66237221. The reversal of 66237214 is 41273266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38137 + ... + 39835.

It is an arithmetic number, because the mean of its divisors is an integer number (6307425).

Almost surely, 266237214 is an apocalyptic number.

66237214 is a deficient number, since it is larger than the sum of its proper divisors (34681586).

66237214 is a wasteful number, since it uses less digits than its factorization.

66237214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its digits is 12096, while the sum is 31.

The square root of 66237214 is about 8138.6248224132. The cubic root of 66237214 is about 404.6075841332.

The spelling of 66237214 in words is "sixty-six million, two hundred thirty-seven thousand, two hundred fourteen".

Divisors: 1 2 101 193 202 386 1699 3398 19493 38986 171599 327907 343198 655814 33118607 66237214