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2874428715860 = 2251324120742017
BaseRepresentation
bin101001110101000001010…
…011010111001101010100
3101011210101212202002212122
4221311001103113031110
5334043312222401420
610040254435035112
7414446010644552
oct51650123271524
911153355662778
102874428715860
11a0904708a3a9
123a510043ba98
1317b099333a00
149d1a1a9cbd2
154eb855dc725
hex29d414d7354

2874428715860 has 72 divisors (see below), whose sum is σ = 6695772314616. Its totient is φ = 1035441438720.

The previous prime is 2874428715839. The next prime is 2874428715863. The reversal of 2874428715860 is 685178244782.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2423040918544 + 451387797316 = 1556612^2 + 671854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2874428715793 and 2874428715802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2874428715863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10232429 + ... + 10509588.

It is an arithmetic number, because the mean of its divisors is an integer number (92996837703).

Almost surely, 22874428715860 is an apocalyptic number.

2874428715860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2874428715860 is an abundant number, since it is smaller than the sum of its proper divisors (3821343598756).

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

2874428715860 is a wasteful number, since it uses less digits than its factorization.

2874428715860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20742093 (or 20742078 counting only the distinct ones).

The product of its (nonzero) digits is 48168960, while the sum is 62.

The spelling of 2874428715860 in words is "two trillion, eight hundred seventy-four billion, four hundred twenty-eight million, seven hundred fifteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 41 52 65 82 130 164 169 205 260 338 410 533 676 820 845 1066 1690 2132 2665 3380 5330 6929 10660 13858 27716 34645 69290 138580 20742017 41484034 82968068 103710085 207420170 269646221 414840340 539292442 850422697 1078584884 1348231105 1700845394 2696462210 3401690788 3505400873 4252113485 5392924420 7010801746 8504226970 11055495061 14021603492 17008453940 17527004365 22110990122 35054008730 44221980244 55277475305 70108017460 110554950610 143721435793 221109901220 287442871586 574885743172 718607178965 1437214357930 2874428715860