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27823472472 = 23319471298221
BaseRepresentation
bin11001111010011010…
…000111111101011000
32122211001202211220110
4121322122013331120
5423440302104342
620440521324320
72003330420355
oct317232077530
978731684813
1027823472472
1110888696754
1254860366a0
1328154915a3
1414bd35b62c
15acc9e6c9c
hex67a687f58

27823472472 has 64 divisors (see below), whose sum is σ = 74777587200. Its totient is φ = 8599409280.

The previous prime is 27823472447. The next prime is 27823472477. The reversal of 27823472472 is 27427432872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27823472477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627679 + ... + 670542.

It is an arithmetic number, because the mean of its divisors is an integer number (1168399800).

Almost surely, 227823472472 is an apocalyptic number.

It is an amenable number.

27823472472 is an abundant number, since it is smaller than the sum of its proper divisors (46954114728).

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

27823472472 is a wasteful number, since it uses less digits than its factorization.

27823472472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298296 (or 1298292 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 48.

The spelling of 27823472472 in words is "twenty-seven billion, eight hundred twenty-three million, four hundred seventy-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 47 57 76 94 114 141 152 188 228 282 376 456 564 893 1128 1786 2679 3572 5358 7144 10716 21432 1298221 2596442 3894663 5192884 7789326 10385768 15578652 24666199 31157304 49332398 61016387 73998597 98664796 122032774 147997194 183049161 197329592 244065548 295994388 366098322 488131096 591988776 732196644 1159311353 1464393288 2318622706 3477934059 4637245412 6955868118 9274490824 13911736236 27823472472