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26361062420 = 22571124633361
BaseRepresentation
bin11000100011001111…
…011110010000010100
32112001010222201110012
4120203033132100110
5412441412444140
620035441015352
71622152222250
oct304317362024
975033881405
1026361062420
11101a8150400
125138324558
132641500bb4
1413c1041260
15a44425265
hex6233de414

26361062420 has 144 divisors (see below), whose sum is σ = 69711849984. Its totient is φ = 8196249600.

The previous prime is 26361062411. The next prime is 26361062423. The reversal of 26361062420 is 2426016362.

It is a super-2 number, since 2×263610624202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26361062423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7841540 + ... + 7844900.

Almost surely, 226361062420 is an apocalyptic number.

26361062420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26361062420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34855924992).

26361062420 is an abundant number, since it is smaller than the sum of its proper divisors (43350787564).

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

26361062420 is a wasteful number, since it uses less digits than its factorization.

26361062420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862 (or 3849 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 26361062420 its reverse (2426016362), we get a palindrome (28787078782).

The spelling of 26361062420 in words is "twenty-six billion, three hundred sixty-one million, sixty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 121 140 154 220 242 308 385 463 484 605 770 847 926 1210 1540 1694 1852 2315 2420 3241 3361 3388 4235 4630 5093 6482 6722 8470 9260 10186 12964 13444 16205 16805 16940 20372 23527 25465 32410 33610 35651 36971 47054 50930 56023 64820 67220 71302 73942 94108 101860 112046 117635 142604 147884 178255 184855 224092 235270 258797 280115 356510 369710 392161 406681 470540 517594 560230 713020 739420 784322 813362 1035188 1120460 1293985 1556143 1568644 1626724 1960805 2033405 2587970 2846767 3112286 3921610 4066810 5175940 5693534 6224572 7780715 7843220 8133620 10893001 11387068 14233835 15561430 17117573 21786002 28467670 31122860 34235146 43572004 54465005 56935340 68470292 85587865 108930010 119823011 171175730 188293303 217860020 239646022 342351460 376586606 479292044 599115055 753173212 941466515 1198230110 1318053121 1882933030 2396460220 2636106242 3765866060 5272212484 6590265605 13180531210 26361062420