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120645350464 = 2617316976421
BaseRepresentation
bin111000001011100000…
…1011111010001000000
3102112101222111210220111
41300113001133101000
53434040202203324
6131231304321104
711500463362432
oct1602701372100
9375358453814
10120645350464
1147190178511
121b46ba73194
13b4b8b00c52
145ba6d36652
153211980794
hex1c1705f440

120645350464 has 56 divisors (see below), whose sum is σ = 240968878488. Its totient is φ = 59929313280.

The previous prime is 120645350429. The next prime is 120645350543. The reversal of 120645350464 is 464053546021.

It can be written as a sum of positive squares in 4 ways, for example, as 63600804864 + 57044545600 = 252192^2 + 238840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18785974 + ... + 18792394.

Almost surely, 2120645350464 is an apocalyptic number.

It is an amenable number.

120645350464 is a deficient number, since it is larger than the sum of its proper divisors (120323528024).

120645350464 is a wasteful number, since it uses less digits than its factorization.

120645350464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8303 (or 8293 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 120645350464 its reverse (464053546021), we get a palindrome (584698896485).

The spelling of 120645350464 in words is "one hundred twenty billion, six hundred forty-five million, three hundred fifty thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 173 346 692 1384 1697 2768 3394 5536 6421 6788 11072 12842 13576 25684 27152 51368 54304 102736 108608 205472 293581 410944 587162 1110833 1174324 2221666 2348648 4443332 4697296 8886664 9394592 10896437 17773328 18789184 21792874 35546656 43585748 71093312 87171496 174342992 348685984 697371968 1885083601 3770167202 7540334404 15080668808 30161337616 60322675232 120645350464