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420241212340 = 225311574317251
BaseRepresentation
bin1100001110110000101…
…01000000001110110100
31111011201022222111100221
412013120111000032310
523341123222243330
6521020043344124
742234653236615
oct6073025001664
91434638874327
10420241212340
11152250232864
1269541b22044
1330822c9c871
14164a8517c0c
15ade890eb7a
hex61d85403b4

420241212340 has 48 divisors (see below), whose sum is σ = 916777096704. Its totient is φ = 161637840000.

The previous prime is 420241212337. The next prime is 420241212353. The reversal of 420241212340 is 43212142024.

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, 2061286 + ... + 2255965.

It is an arithmetic number, because the mean of its divisors is an integer number (19099522848).

Almost surely, 2420241212340 is an apocalyptic number.

It is an amenable number.

420241212340 is an abundant number, since it is smaller than the sum of its proper divisors (496535884364).

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

420241212340 is a wasteful number, since it uses less digits than its factorization.

420241212340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317448 (or 4317446 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 420241212340 its reverse (43212142024), we get a palindrome (463453354364).

The spelling of 420241212340 in words is "four hundred twenty billion, two hundred forty-one million, two hundred twelve thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 157 310 314 620 628 785 1570 3140 4867 9734 19468 24335 48670 97340 4317251 8634502 17269004 21586255 43172510 86345020 133834781 267669562 535339124 669173905 677808407 1338347810 1355616814 2676695620 2711233628 3389042035 6778084070 13556168140 21012060617 42024121234 84048242468 105060303085 210120606170 420241212340