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6684972 = 2237211369
BaseRepresentation
bin11001100000000100101100
3110120122001120
4121200010230
53202404342
6355140540
7110551500
oct31400454
913518046
106684972
113856578
1222a4750
131500a08
14c60300
158c0aec
hex66012c

6684972 has 36 divisors (see below), whose sum is σ = 18146520. Its totient is φ = 1909824.

The previous prime is 6684971. The next prime is 6684983. The reversal of 6684972 is 2794866.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6684971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5097 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (504070).

Almost surely, 26684972 is an apocalyptic number.

It is an amenable number.

6684972 is an abundant number, since it is smaller than the sum of its proper divisors (11461548).

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

6684972 is a wasteful number, since it uses less digits than its factorization.

6684972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390 (or 11381 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 6684972 is about 2585.5312800274. The cubic root of 6684972 is about 188.3793081345.

The spelling of 6684972 in words is "six million, six hundred eighty-four thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 11369 22738 34107 45476 68214 79583 136428 159166 238749 318332 477498 557081 954996 1114162 1671243 2228324 3342486 6684972