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134311471 = 719187353
BaseRepresentation
bin10000000000101…
…10111000101111
3100100201201200221
420000112320233
5233340431341
621154432211
73220425430
oct1000267057
9310651627
10134311471
11698a7218
1238b92667
1321a98058
1413ba3487
15bbd0ed1
hex8016e2f

134311471 has 4 divisors (see below), whose sum is σ = 153498832. Its totient is φ = 115124112.

The previous prime is 134311451. The next prime is 134311501. The reversal of 134311471 is 174113431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174113431 = 569305999.

It is a cyclic number.

It is not a de Polignac number, because 134311471 - 27 = 134311343 is a prime.

It is a super-3 number, since 3×1343114713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134311451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9593670 + ... + 9593683.

It is an arithmetic number, because the mean of its divisors is an integer number (38374708).

Almost surely, 2134311471 is an apocalyptic number.

134311471 is a deficient number, since it is larger than the sum of its proper divisors (19187361).

134311471 is an equidigital number, since it uses as much as digits as its factorization.

134311471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19187360.

The product of its digits is 1008, while the sum is 25.

The square root of 134311471 is about 11589.2825921193. The cubic root of 134311471 is about 512.1191726479.

The spelling of 134311471 in words is "one hundred thirty-four million, three hundred eleven thousand, four hundred seventy-one".

Divisors: 1 7 19187353 134311471