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468166440 = 233571513691
BaseRepresentation
bin11011111001111…
…010011100101000
31012121221022121210
4123321322130220
51424322311230
6114242233120
714413230510
oct3371723450
91177838553
10468166440
112202a4415
121109557a0
1375cba681
144626a840
152b17aeb0
hex1be7a728

468166440 has 128 divisors (see below), whose sum is σ = 1616209920. Its totient is φ = 106272000.

The previous prime is 468166427. The next prime is 468166477. The reversal of 468166440 is 44661864.

It is an unprimeable number.

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, 124995 + ... + 128685.

It is an arithmetic number, because the mean of its divisors is an integer number (12626640).

Almost surely, 2468166440 is an apocalyptic number.

468166440 is a gapful number since it is divisible by the number (40) 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 468166440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808104960).

468166440 is an abundant number, since it is smaller than the sum of its proper divisors (1148043480).

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

468166440 is a wasteful number, since it uses less digits than its factorization.

468166440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 468166440 is about 21637.1541566815. The cubic root of 468166440 is about 776.4856358965.

The spelling of 468166440 in words is "four hundred sixty-eight million, one hundred sixty-six thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 151 168 210 280 302 420 453 604 755 840 906 1057 1208 1510 1812 2114 2265 3020 3171 3624 3691 4228 4530 5285 6040 6342 7382 8456 9060 10570 11073 12684 14764 15855 18120 18455 21140 22146 25368 25837 29528 31710 36910 42280 44292 51674 55365 63420 73820 77511 88584 103348 110730 126840 129185 147640 155022 206696 221460 258370 310044 387555 442920 516740 557341 620088 775110 1033480 1114682 1550220 1672023 2229364 2786705 3100440 3344046 3901387 4458728 5573410 6688092 7802774 8360115 11146820 11704161 13376184 15605548 16720230 19506935 22293640 23408322 31211096 33440460 39013870 46816644 58520805 66880920 78027740 93633288 117041610 156055480 234083220 468166440