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120981640332 = 223721311570619
BaseRepresentation
bin111000010101100010…
…0010101010010001100
3102120021102022002212210
41300223010111102030
53440232244442312
6131324520230420
711512015655400
oct1605304252214
9376242262783
10120981640332
1147342a89023
121b54460b410
13b540696937
145bd9875100
15323125be3c
hex1c2b11548c

120981640332 has 72 divisors (see below), whose sum is σ = 330885656640. Its totient is φ = 34302297120.

The previous prime is 120981640313. The next prime is 120981640349. The reversal of 120981640332 is 233046189021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 708282 + ... + 862337.

It is an arithmetic number, because the mean of its divisors is an integer number (4595634120).

Almost surely, 2120981640332 is an apocalyptic number.

120981640332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120981640332 is an abundant number, since it is smaller than the sum of its proper divisors (209904016308).

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

120981640332 is a wasteful number, since it uses less digits than its factorization.

120981640332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570771 (or 1570762 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 120981640332 in words is "one hundred twenty billion, nine hundred eighty-one million, six hundred forty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 131 147 196 262 294 393 524 588 786 917 1572 1834 2751 3668 5502 6419 11004 12838 19257 25676 38514 77028 1570619 3141238 4711857 6282476 9423714 10994333 18847428 21988666 32982999 43977332 65965998 76960331 131931996 153920662 205751089 230880993 307841324 411502178 461761986 617253267 823004356 923523972 1234506534 1440257623 2469013068 2880515246 4320772869 5761030492 8641545738 10081803361 17283091476 20163606722 30245410083 40327213444 60490820166 120981640332