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146217470 = 257347907
BaseRepresentation
bin10001011011100…
…01100111111110
3101012010121122212
420231301213332
5244412424340
622301540422
73423554000
oct1055614776
9335117585
10146217470
1175599393
1240b74712
13243a6319
14155c2370
15cc83a65
hex8b719fe

146217470 has 64 divisors (see below), whose sum is σ = 313804800. Its totient is φ = 49010976.

The previous prime is 146217457. The next prime is 146217473. The reversal of 146217470 is 74712641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146217473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160757 + ... + 161663.

It is an arithmetic number, because the mean of its divisors is an integer number (4903200).

Almost surely, 2146217470 is an apocalyptic number.

146217470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146217470 is an abundant number, since it is smaller than the sum of its proper divisors (167587330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146217470 is an equidigital number, since it uses as much as digits as its factorization.

146217470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 146217470 is about 12092.0415976790. The cubic root of 146217470 is about 526.8250556214.

The spelling of 146217470 in words is "one hundred forty-six million, two hundred seventeen thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 47 49 70 94 98 235 245 329 343 470 490 658 686 907 1645 1715 1814 2303 3290 3430 4535 4606 6349 9070 11515 12698 16121 23030 31745 32242 42629 44443 63490 80605 85258 88886 161210 213145 222215 298403 311101 426290 444430 596806 622202 1492015 1555505 2088821 2984030 3111010 4177642 10444105 14621747 20888210 29243494 73108735 146217470