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146145471 = 3291679833
BaseRepresentation
bin10001011011000…
…00000010111111
3101011222221220020
420231200002333
5244403123341
622300223223
73423134043
oct1055400277
9334887806
10146145471
117554a28a
1240b3ab13
132437c614
14155a4023
15cc6c566
hex8b600bf

146145471 has 8 divisors (see below), whose sum is σ = 201580080. Its totient is φ = 94070592.

The previous prime is 146145463. The next prime is 146145479. The reversal of 146145471 is 174541641.

It is an interprime number because it is at equal distance from previous prime (146145463) and next prime (146145479).

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

It is not a de Polignac number, because 146145471 - 23 = 146145463 is a prime.

It is a super-3 number, since 3×1461454713 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146145479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839830 + ... + 840003.

It is an arithmetic number, because the mean of its divisors is an integer number (25197510).

Almost surely, 2146145471 is an apocalyptic number.

146145471 is a deficient number, since it is larger than the sum of its proper divisors (55434609).

146145471 is a wasteful number, since it uses less digits than its factorization.

146145471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679865.

The product of its digits is 13440, while the sum is 33.

The square root of 146145471 is about 12089.0641076967. The cubic root of 146145471 is about 526.7385700490.

The spelling of 146145471 in words is "one hundred forty-six million, one hundred forty-five thousand, four hundred seventy-one".

Divisors: 1 3 29 87 1679833 5039499 48715157 146145471