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145773660 = 22355941179
BaseRepresentation
bin10001011000001…
…01010001011100
3101011022001212110
420230011101130
5244304224120
622244234020
73420025044
oct1054052134
9334261773
10145773660
11753159aa
124099b910
132427c306
1415508724
15cbe72e0
hex8b0545c

145773660 has 48 divisors (see below), whose sum is σ = 415094400. Its totient is φ = 38213184.

The previous prime is 145773619. The next prime is 145773679. The reversal of 145773660 is 66377541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17050 + ... + 24129.

It is an arithmetic number, because the mean of its divisors is an integer number (8647800).

Almost surely, 2145773660 is an apocalyptic number.

145773660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145773660 is an abundant number, since it is smaller than the sum of its proper divisors (269320740).

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

145773660 is a wasteful number, since it uses less digits than its factorization.

145773660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41250 (or 41248 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 145773660 is about 12073.6763249642. The cubic root of 145773660 is about 526.2914960612.

The spelling of 145773660 in words is "one hundred forty-five million, seven hundred seventy-three thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 59 60 118 177 236 295 354 590 708 885 1180 1770 3540 41179 82358 123537 164716 205895 247074 411790 494148 617685 823580 1235370 2429561 2470740 4859122 7288683 9718244 12147805 14577366 24295610 29154732 36443415 48591220 72886830 145773660