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64457044000 = 255319848119
BaseRepresentation
bin111100000001111100…
…000111000000100000
320011101010022002200221
4330001330013000200
52024002000402000
645340002052424
74441206556036
oct740174070040
9204333262627
1064457044000
11253773591a8
12105aa64a114
136102c7382b
1431967ba556
151a23ba861a
hexf01f07020

64457044000 has 96 divisors (see below), whose sum is σ = 166706467200. Its totient is φ = 24425798400.

The previous prime is 64457043997. The next prime is 64457044013. The reversal of 64457044000 is 44075446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348060 + ... + 500059.

It is an arithmetic number, because the mean of its divisors is an integer number (1736525700).

Almost surely, 264457044000 is an apocalyptic number.

It is an amenable number.

64457044000 is an abundant number, since it is smaller than the sum of its proper divisors (102249423200).

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

64457044000 is a wasteful number, since it uses less digits than its factorization.

64457044000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848163 (or 848145 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 64457044000 in words is "sixty-four billion, four hundred fifty-seven million, forty-four thousand".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 125 152 160 190 200 250 304 380 400 475 500 608 760 800 950 1000 1520 1900 2000 2375 3040 3800 4000 4750 7600 9500 15200 19000 38000 76000 848119 1696238 3392476 4240595 6784952 8481190 13569904 16114261 16962380 21202975 27139808 32228522 33924760 42405950 64457044 67849520 80571305 84811900 106014875 128914088 135699040 161142610 169623800 212029750 257828176 322285220 339247600 402856525 424059500 515656352 644570440 678495200 805713050 848119000 1289140880 1611426100 1696238000 2014282625 2578281760 3222852200 3392476000 4028565250 6445704400 8057130500 12891408800 16114261000 32228522000 64457044000