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147137471 = 1311318267
BaseRepresentation
bin10001100010100…
…10001110111111
3101020212100122222
420301102032333
5300131344341
622333355555
73434435135
oct1061221677
9336770588
10147137471
1176067618
1241338bbb
1324638cc0
1415781755
15cdb644b
hex8c523bf

147137471 has 4 divisors (see below), whose sum is σ = 158455752. Its totient is φ = 135819192.

The previous prime is 147137461. The next prime is 147137483. The reversal of 147137471 is 174731741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174731741 = 184794603.

It is a cyclic number.

It is not a de Polignac number, because 147137471 - 218 = 146875327 is a prime.

It is a super-3 number, since 3×1471374713 (a number of 25 digits) contains 333 as substring.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147137461) 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, 5659121 + ... + 5659146.

It is an arithmetic number, because the mean of its divisors is an integer number (39613938).

Almost surely, 2147137471 is an apocalyptic number.

147137471 is a deficient number, since it is larger than the sum of its proper divisors (11318281).

147137471 is a wasteful number, since it uses less digits than its factorization.

147137471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318280.

The product of its digits is 16464, while the sum is 35.

The square root of 147137471 is about 12130.0235366631. The cubic root of 147137471 is about 527.9276748481.

The spelling of 147137471 in words is "one hundred forty-seven million, one hundred thirty-seven thousand, four hundred seventy-one".

Divisors: 1 13 11318267 147137471