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420748588860 = 223553132310877
BaseRepresentation
bin1100001111101101001…
…00011111011100111100
31111020000200200220002220
412013312210133130330
523343143114320420
6521142250245340
742253353665505
oct6076644373474
91436020626086
10420748588860
111524906782a6
1269663a26850
13308a4138362
1416515a6dbac
15ae28233840
hex61f691f73c

420748588860 has 48 divisors (see below), whose sum is σ = 1200324285216. Its totient is φ = 110082648832.

The previous prime is 420748588787. The next prime is 420748588877. The reversal of 420748588860 is 68885847024.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 420748588794 and 420748588803.

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 15 ways as a sum of consecutive naturals, for example, 66152259 + ... + 66158618.

It is an arithmetic number, because the mean of its divisors is an integer number (25006755942).

Almost surely, 2420748588860 is an apocalyptic number.

It is an amenable number.

420748588860 is an abundant number, since it is smaller than the sum of its proper divisors (779575696356).

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

420748588860 is a wasteful number, since it uses less digits than its factorization.

420748588860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132310942 (or 132310940 counting only the distinct ones).

The product of its (nonzero) digits is 27525120, while the sum is 60.

The spelling of 420748588860 in words is "four hundred twenty billion, seven hundred forty-eight million, five hundred eighty-eight thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 132310877 264621754 396932631 529243508 661554385 793865262 1323108770 1587730524 1984663155 2646217540 3969326310 7012476481 7938652620 14024952962 21037429443 28049905924 35062382405 42074858886 70124764810 84149717772 105187147215 140249529620 210374294430 420748588860