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315035047 is a prime number
BaseRepresentation
bin10010110001110…
…000110110100111
3210221210102211201
4102301300312213
51121122110142
651132143331
710543516345
oct2261606647
9727712751
10315035047
11151913548
1289607b47
1350363392
142dba8995
151c9cdab7
hex12c70da7

315035047 has 2 divisors, whose sum is σ = 315035048. Its totient is φ = 315035046.

The previous prime is 315035011. The next prime is 315035081. The reversal of 315035047 is 740530513.

It is a strong prime.

It is an emirp because it is prime and its reverse (740530513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315035047 - 27 = 315034919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315035087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157517523 + 157517524.

It is an arithmetic number, because the mean of its divisors is an integer number (157517524).

Almost surely, 2315035047 is an apocalyptic number.

315035047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315035047 is an equidigital number, since it uses as much as digits as its factorization.

315035047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 315035047 is about 17749.2266592097. The cubic root of 315035047 is about 680.4344448412.

The spelling of 315035047 in words is "three hundred fifteen million, thirty-five thousand, forty-seven".