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42479906240 = 265607321859
BaseRepresentation
bin100111100011111111…
…111110110111000000
311001122111102211022202
4213203333332313000
51143444323444430
631303123452332
73032456150102
oct474377766700
9131574384282
1042479906240
1117019888332
1282965270a8
13400ca979c5
1420adaab572
151189593d45
hex9e3ffedc0

42479906240 has 56 divisors (see below), whose sum is σ = 101176561680. Its totient is φ = 16988387328.

The previous prime is 42479906191. The next prime is 42479906263. The reversal of 42479906240 is 4260997424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932431 + ... + 1954289.

Almost surely, 242479906240 is an apocalyptic number.

42479906240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42479906240 is an abundant number, since it is smaller than the sum of its proper divisors (58696655440).

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

42479906240 is a wasteful number, since it uses less digits than its factorization.

42479906240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27949 (or 27939 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 42479906240 in words is "forty-two billion, four hundred seventy-nine million, nine hundred six thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 6073 12146 21859 24292 30365 43718 48584 60730 87436 97168 109295 121460 174872 194336 218590 242920 349744 388672 437180 485840 699488 874360 971680 1398976 1748720 1943360 3497440 6994880 132749707 265499414 530998828 663748535 1061997656 1327497070 2123995312 2654994140 4247990624 5309988280 8495981248 10619976560 21239953120 42479906240