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146057688 = 23337293331
BaseRepresentation
bin10001011010010…
…10100111011000
3101011211111111000
420231022213120
5244342321223
622254305000
73422320110
oct1055124730
9334744430
10146057688
117549a337
1240ab8160
132434b68a
1415580040
15cc51543
hex8b4a9d8

146057688 has 128 divisors (see below), whose sum is σ = 479808000. Its totient is φ = 40279680.

The previous prime is 146057663. The next prime is 146057689. The reversal of 146057688 is 886750641.

It is a happy number.

146057688 is a `hidden beast` number, since 14 + 60 + 576 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146057689) 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 31 ways as a sum of consecutive naturals, for example, 42183 + ... + 45513.

It is an arithmetic number, because the mean of its divisors is an integer number (3748500).

Almost surely, 2146057688 is an apocalyptic number.

146057688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146057688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239904000).

146057688 is an abundant number, since it is smaller than the sum of its proper divisors (333750312).

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

146057688 is a wasteful number, since it uses less digits than its factorization.

146057688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 146057688 is about 12085.4328842619. The cubic root of 146057688 is about 526.6330862173.

Subtracting from 146057688 its product of nonzero digits (322560), we obtain a triangular number (145735128 = T17072).

The spelling of 146057688 in words is "one hundred forty-six million, fifty-seven thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 29 36 42 54 56 58 63 72 84 87 108 116 126 168 174 189 203 216 232 252 261 348 378 406 504 522 609 696 756 783 812 1044 1218 1512 1566 1624 1827 2088 2436 3132 3331 3654 4872 5481 6264 6662 7308 9993 10962 13324 14616 19986 21924 23317 26648 29979 39972 43848 46634 59958 69951 79944 89937 93268 96599 119916 139902 179874 186536 193198 209853 239832 279804 289797 359748 386396 419706 559608 579594 629559 676193 719496 772792 839412 869391 1159188 1259118 1352386 1678824 1738782 2028579 2318376 2518236 2608173 2704772 3477564 4057158 5036472 5216346 5409544 6085737 6955128 8114316 10432692 12171474 16228632 18257211 20865384 24342948 36514422 48685896 73028844 146057688