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67404066740 = 22519732429851
BaseRepresentation
bin111110110001100110…
…000110111110110100
320102222111122100220022
4332301212012332310
52101020420113430
650544235024312
74604223054053
oct766146067664
9212874570808
1067404066740
1126649924a8a
121109159b098
13648269977a
143395d5239a
151b477854e5
hexfb1986fb4

67404066740 has 48 divisors (see below), whose sum is σ = 151039600320. Its totient is φ = 25192684800.

The previous prime is 67404066739. The next prime is 67404066799. The reversal of 67404066740 is 4766040476.

It is a junction number, because it is equal to n+sod(n) for n = 67404066691 and 67404066700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187186 + ... + 1242665.

It is an arithmetic number, because the mean of its divisors is an integer number (3146658340).

Almost surely, 267404066740 is an apocalyptic number.

It is an amenable number.

67404066740 is an abundant number, since it is smaller than the sum of its proper divisors (83635533580).

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

67404066740 is a wasteful number, since it uses less digits than its factorization.

67404066740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429952 (or 2429950 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 67404066740 in words is "sixty-seven billion, four hundred four million, sixty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 73 76 95 146 190 292 365 380 730 1387 1460 2774 5548 6935 13870 27740 2429851 4859702 9719404 12149255 24298510 46167169 48597020 92334338 177379123 184668676 230835845 354758246 461671690 709516492 886895615 923343380 1773791230 3370203337 3547582460 6740406674 13480813348 16851016685 33702033370 67404066740