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672439037 = 2953437501
BaseRepresentation
bin101000000101001…
…001101011111101
31201212022102221112
4220011021223331
52334121022122
6150420411405
722443431444
oct5005115375
91655272845
10672439037
11315635446
12169246b65
13a940c62a
1465441d5b
153e07b2e2
hex28149afd

672439037 has 8 divisors (see below), whose sum is σ = 708753240. Its totient is φ = 637000000.

The previous prime is 672439021. The next prime is 672439043. The reversal of 672439037 is 730934276.

672439037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123520996 + 548918041 = 11114^2 + 23429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672439037 - 24 = 672439021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 672438985 and 672439003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672439087) 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, 217214 + ... + 220287.

It is an arithmetic number, because the mean of its divisors is an integer number (88594155).

Almost surely, 2672439037 is an apocalyptic number.

It is an amenable number.

672439037 is a deficient number, since it is larger than the sum of its proper divisors (36314203).

672439037 is a wasteful number, since it uses less digits than its factorization.

672439037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437583.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 672439037 is about 25931.4295209501. The cubic root of 672439037 is about 876.0945375374.

The spelling of 672439037 in words is "six hundred seventy-two million, four hundred thirty-nine thousand, thirty-seven".

Divisors: 1 29 53 1537 437501 12687529 23187553 672439037