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142980085640 = 23574631102901
BaseRepresentation
bin1000010100101001000…
…1101111011110001000
3111200001112020220201102
42011022101233132020
54320310400220030
6145403435240532
713221115450430
oct2051221573610
9450045226642
10142980085640
1155701592637
12238638a9148
13106380c3092
146cc532d2c0
153abc67ec45
hex214a46f788

142980085640 has 64 divisors (see below), whose sum is σ = 368457500160. Its totient is φ = 48915820800.

The previous prime is 142980085639. The next prime is 142980085657. The reversal of 142980085640 is 46580089241.

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 15 ways as a sum of consecutive naturals, for example, 421811 + ... + 681090.

It is an arithmetic number, because the mean of its divisors is an integer number (5757148440).

Almost surely, 2142980085640 is an apocalyptic number.

142980085640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142980085640 is an abundant number, since it is smaller than the sum of its proper divisors (225477414520).

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

142980085640 is a wasteful number, since it uses less digits than its factorization.

142980085640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103382 (or 1103378 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 142980085640 in words is "one hundred forty-two billion, nine hundred eighty million, eighty-five thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 463 926 1852 2315 3241 3704 4630 6482 9260 12964 16205 18520 25928 32410 64820 129640 1102901 2205802 4411604 5514505 7720307 8823208 11029010 15440614 22058020 30881228 38601535 44116040 61762456 77203070 154406140 308812280 510643163 1021286326 2042572652 2553215815 3574502141 4085145304 5106431630 7149004282 10212863260 14298008564 17872510705 20425726520 28596017128 35745021410 71490042820 142980085640