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52823745 = 3451379127
BaseRepresentation
bin1100100110000…
…0011011000001
310200101201120000
43021200123001
5102010324440
65124110213
71210665042
oct311403301
9120351500
1052823745
11278aa297
1215835369
13ac36770
1470308c9
154986730
hex32606c1

52823745 has 80 divisors (see below), whose sum is σ = 104079360. Its totient is φ = 25474176.

The previous prime is 52823741. The next prime is 52823767. The reversal of 52823745 is 54732825.

52823745 is a `hidden beast` number, since 5 + 282 + 374 + 5 = 666.

It is not a de Polignac number, because 52823745 - 22 = 52823741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52823741) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 415872 + ... + 415998.

It is an arithmetic number, because the mean of its divisors is an integer number (1300992).

Almost surely, 252823745 is an apocalyptic number.

It is an amenable number.

52823745 is a deficient number, since it is larger than the sum of its proper divisors (51255615).

52823745 is a wasteful number, since it uses less digits than its factorization.

52823745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 227 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 52823745 is about 7267.9945652154. The cubic root of 52823745 is about 375.2117204427.

Adding to 52823745 its sum of digits (36), we get a triangular number (52823781 = T10278).

The spelling of 52823745 in words is "fifty-two million, eight hundred twenty-three thousand, seven hundred forty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 79 81 117 127 135 195 237 351 381 395 405 585 635 711 1027 1053 1143 1185 1651 1755 1905 2133 3081 3429 3555 4953 5135 5265 5715 6399 8255 9243 10033 10287 10665 14859 15405 17145 24765 27729 30099 31995 44577 46215 50165 51435 74295 83187 90297 130429 133731 138645 150495 222885 270891 391287 415935 451485 652145 668655 812673 1173861 1354455 1956435 3521583 4063365 5869305 10564749 17607915 52823745