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47977876225 = 522966176381
BaseRepresentation
bin101100101011101101…
…000100101100000001
311120211122211122021201
4230223231010230001
51241224314014400
634012444221201
73315636135106
oct545355045401
9146748748251
1047977876225
1119390295584
12936b83a801
1346a7b4a696
142471d56aad
1513ac0b206a
hexb2bb44b01

47977876225 has 12 divisors (see below), whose sum is σ = 61544035260. Its totient is φ = 37058772800.

The previous prime is 47977876207. The next prime is 47977876253. The reversal of 47977876225 is 52267877974.

It can be written as a sum of positive squares in 6 ways, for example, as 2421136 + 47975455089 = 1556^2 + 219033^2 .

It is not a de Polignac number, because 47977876225 - 219 = 47977351937 is a prime.

It is a super-2 number, since 2×479778762252 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33087466 + ... + 33088915.

It is an arithmetic number, because the mean of its divisors is an integer number (5128669605).

Almost surely, 247977876225 is an apocalyptic number.

It is an amenable number.

47977876225 is a deficient number, since it is larger than the sum of its proper divisors (13566159035).

47977876225 is a wasteful number, since it uses less digits than its factorization.

47977876225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66176420 (or 66176415 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 64.

The spelling of 47977876225 in words is "forty-seven billion, nine hundred seventy-seven million, eight hundred seventy-six thousand, two hundred twenty-five".

Divisors: 1 5 25 29 145 725 66176381 330881905 1654409525 1919115049 9595575245 47977876225