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52351870 = 2531971741
BaseRepresentation
bin1100011110110…
…1001101111110
310122111202021011
43013231031332
5101400224440
65110025434
71203661234
oct307551576
9118452234
1052351870
112760780a
121564827a
13aacca4c
146d4a954
1548e19ea
hex31ed37e

52351870 has 32 divisors (see below), whose sum is σ = 98332416. Its totient is φ = 20044800.

The previous prime is 52351837. The next prime is 52351879. The reversal of 52351870 is 7815325.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52351879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29200 + ... + 30940.

It is an arithmetic number, because the mean of its divisors is an integer number (3072888).

Almost surely, 252351870 is an apocalyptic number.

52351870 is a deficient number, since it is larger than the sum of its proper divisors (45980546).

52351870 is a wasteful number, since it uses less digits than its factorization.

52351870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 52351870 is about 7235.4592114115. The cubic root of 52351870 is about 374.0911204289.

The spelling of 52351870 in words is "fifty-two million, three hundred fifty-one thousand, eight hundred seventy".

Divisors: 1 2 5 10 31 62 97 155 194 310 485 970 1741 3007 3482 6014 8705 15035 17410 30070 53971 107942 168877 269855 337754 539710 844385 1688770 5235187 10470374 26175935 52351870