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421380629980 = 22561838946757
BaseRepresentation
bin1100010000111000011…
…11100010010111011100
31111021122201222220112021
412020130033202113130
523400441420124410
6521325105145524
742305130154132
oct6103417422734
91437581886467
10421380629980
11152785420132
12697bb62b2a4
1330975071c9b
1416575997752
15ae6397eeda
hex621c3e25dc

421380629980 has 96 divisors (see below), whose sum is σ = 920489209920. Its totient is φ = 161947822080.

The previous prime is 421380629959. The next prime is 421380630007. The reversal of 421380629980 is 89926083124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8988762 + ... + 9035518.

It is an arithmetic number, because the mean of its divisors is an integer number (9588429270).

Almost surely, 2421380629980 is an apocalyptic number.

It is an amenable number.

421380629980 is an abundant number, since it is smaller than the sum of its proper divisors (499108579940).

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

421380629980 is a wasteful number, since it uses less digits than its factorization.

421380629980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46999 (or 46997 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 421380629980 in words is "four hundred twenty-one billion, three hundred eighty million, six hundred twenty-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 61 83 89 122 166 178 244 305 332 356 415 445 610 830 890 1220 1660 1780 5063 5429 7387 10126 10858 14774 20252 21716 25315 27145 29548 36935 46757 50630 54290 73870 93514 101260 108580 147740 187028 233785 450607 467570 901214 935140 1802428 2253035 2852177 3880831 4161373 4506070 5704354 7761662 8322746 9012140 11408708 14260885 15523324 16645492 19404155 20806865 28521770 38808310 41613730 57043540 77616620 83227460 236730691 253843753 345393959 473461382 507687506 690787918 946922764 1015375012 1183653455 1269218765 1381575836 1726969795 2367306910 2538437530 3453939590 4734613820 5076875060 6907879180 21069031499 42138062998 84276125996 105345157495 210690314990 421380629980