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52287470 = 256778041
BaseRepresentation
bin1100011101110…
…1011111101110
310122101110220222
43013131133232
5101341144340
65104411342
71203302414
oct307353756
9118343828
1052287470
1127573394
1215616b52
13aaa9641
146d312b4
1548cc8b5
hex31dd7ee

52287470 has 16 divisors (see below), whose sum is σ = 95523408. Its totient is φ = 20602560.

The previous prime is 52287467. The next prime is 52287481. The reversal of 52287470 is 7478225.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 52287470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38351 + ... + 39690.

It is an arithmetic number, because the mean of its divisors is an integer number (5970213).

Almost surely, 252287470 is an apocalyptic number.

52287470 is a deficient number, since it is larger than the sum of its proper divisors (43235938).

52287470 is a wasteful number, since it uses less digits than its factorization.

52287470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78115.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 52287470 is about 7231.0075369896. The cubic root of 52287470 is about 373.9376629783.

The spelling of 52287470 in words is "fifty-two million, two hundred eighty-seven thousand, four hundred seventy".

Divisors: 1 2 5 10 67 134 335 670 78041 156082 390205 780410 5228747 10457494 26143735 52287470