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55803075860 = 2257612165119
BaseRepresentation
bin110011111110000111…
…110101110100010100
312100001000022222011102
4303332013311310110
51403241041411420
641345141325232
74013565214160
oct637607656424
9170030288142
1055803075860
1121736421914
12a994406818
1353540ba51c
1429b531bca0
1516b907ea75
hexcfe1f5d14

55803075860 has 48 divisors (see below), whose sum is σ = 133951319040. Its totient is φ = 19129063680.

The previous prime is 55803075799. The next prime is 55803075883. The reversal of 55803075860 is 6857030855.

It is a super-2 number, since 2×558030758602 (a number of 22 digits) contains 22 as substring.

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, 824381 + ... + 889499.

It is an arithmetic number, because the mean of its divisors is an integer number (2790652480).

Almost surely, 255803075860 is an apocalyptic number.

It is an amenable number.

55803075860 is an abundant number, since it is smaller than the sum of its proper divisors (78148243180).

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

55803075860 is a wasteful number, since it uses less digits than its factorization.

55803075860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71256 (or 71254 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 55803075860 in words is "fifty-five billion, eight hundred three million, seventy-five thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 6121 12242 24484 30605 42847 61210 65119 85694 122420 130238 171388 214235 260476 325595 428470 455833 651190 856940 911666 1302380 1823332 2279165 4558330 9116660 398593399 797186798 1594373596 1992966995 2790153793 3985933990 5580307586 7971867980 11160615172 13950768965 27901537930 55803075860