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4345212672 = 28321885943
BaseRepresentation
bin1000000101111111…
…01010111100000000
3102012211021200012200
410002333222330000
532344333301142
61555100553200
7212451461343
oct40277527400
912184250180
104345212672
11192a839659
12a13252800
135432bc878
142d313645a
151a671564c
hex102feaf00

4345212672 has 54 divisors (see below), whose sum is σ = 12528325992. Its totient is φ = 1448403456.

The previous prime is 4345212643. The next prime is 4345212673. The reversal of 4345212672 is 2762125434.

4345212672 is a `hidden beast` number, since 43 + 4 + 521 + 26 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4345212673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 940668 + ... + 945275.

Almost surely, 24345212672 is an apocalyptic number.

It is an amenable number.

4345212672 is an abundant number, since it is smaller than the sum of its proper divisors (8183113320).

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

4345212672 is a wasteful number, since it uses less digits than its factorization.

4345212672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885965 (or 1885948 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 4345212672 is about 65918.2271606268. The cubic root of 4345212672 is about 1631.8128389751.

The spelling of 4345212672 in words is "four billion, three hundred forty-five million, two hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 1885943 3771886 5657829 7543772 11315658 15087544 16973487 22631316 30175088 33946974 45262632 60350176 67893948 90525264 120700352 135787896 181050528 241400704 271575792 362101056 482801408 543151584 724202112 1086303168 1448404224 2172606336 4345212672