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52787875 = 537234361
BaseRepresentation
bin1100100101011…
…1101010100011
310200022220100111
43021113222203
5102003203000
65123232151
71210455340
oct311275243
9120286314
1052787875
1127885348
1215818657
13ac2333a
1470217c7
15497acba
hex3257aa3

52787875 has 64 divisors (see below), whose sum is σ = 81709056. Its totient is φ = 33264000.

The previous prime is 52787851. The next prime is 52787887. The reversal of 52787875 is 57878725.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-52787875 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 865345 + ... + 865405.

It is an arithmetic number, because the mean of its divisors is an integer number (1276704).

Almost surely, 252787875 is an apocalyptic number.

52787875 is a deficient number, since it is larger than the sum of its proper divisors (28921181).

52787875 is a wasteful number, since it uses less digits than its factorization.

52787875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 139 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 49.

The square root of 52787875 is about 7265.5264778266. The cubic root of 52787875 is about 375.1267719536.

The spelling of 52787875 in words is "fifty-two million, seven hundred eighty-seven thousand, eight hundred seventy-five".

Divisors: 1 5 7 23 25 35 43 61 115 125 161 175 215 301 305 427 575 805 875 989 1075 1403 1505 1525 2135 2623 2875 4025 4945 5375 6923 7015 7525 7625 9821 10675 13115 18361 20125 24725 34615 35075 37625 49105 53375 60329 65575 91805 123625 173075 175375 245525 301645 327875 422303 459025 865375 1227625 1508225 2111515 2295125 7541125 10557575 52787875