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47138007 = 372244667
BaseRepresentation
bin1011001111010…
…0010011010111
310021200212012010
42303310103113
544031404012
64402155303
71111444410
oct263642327
9107625163
1047138007
1124676534
1213952b33
1399c5817
146390807
154211c3c
hex2cf44d7

47138007 has 8 divisors (see below), whose sum is σ = 71829376. Its totient is φ = 26935992.

The previous prime is 47137999. The next prime is 47138009. The reversal of 47138007 is 70083174.

It is a happy number.

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

It is not a de Polignac number, because 47138007 - 23 = 47137999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47138009) 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, 1122313 + ... + 1122354.

It is an arithmetic number, because the mean of its divisors is an integer number (8978672).

Almost surely, 247138007 is an apocalyptic number.

47138007 is a deficient number, since it is larger than the sum of its proper divisors (24691369).

47138007 is a wasteful number, since it uses less digits than its factorization.

47138007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244677.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 47138007 is about 6865.7124175136. The cubic root of 47138007 is about 361.2354850232.

It can be divided in two parts, 4713 and 8007, that added together give a triangular number (12720 = T159).

The spelling of 47138007 in words is "forty-seven million, one hundred thirty-eight thousand, seven".

Divisors: 1 3 7 21 2244667 6734001 15712669 47138007