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52869660 = 22351723049
BaseRepresentation
bin1100100110101…
…1101000011100
310200111001112120
43021223220130
5102013312120
65125102540
71211245644
oct311535034
9120431476
1052869660
1127930838
1215857a50
13ac5162c
147043524
154995140
hex326ba1c

52869660 has 72 divisors (see below), whose sum is σ = 157306800. Its totient is φ = 13264896.

The previous prime is 52869659. The next prime is 52869667. The reversal of 52869660 is 6696825.

52869660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52869667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15816 + ... + 18864.

Almost surely, 252869660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52869660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78653400).

52869660 is an abundant number, since it is smaller than the sum of its proper divisors (104437140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52869660 is a wasteful number, since it uses less digits than its factorization.

52869660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 52869660 is about 7271.1525908896. The cubic root of 52869660 is about 375.3204017249.

The spelling of 52869660 in words is "fifty-two million, eight hundred sixty-nine thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 289 340 510 578 867 1020 1156 1445 1734 2890 3049 3468 4335 5780 6098 8670 9147 12196 15245 17340 18294 30490 36588 45735 51833 60980 91470 103666 155499 182940 207332 259165 310998 518330 621996 777495 881161 1036660 1554990 1762322 2643483 3109980 3524644 4405805 5286966 8811610 10573932 13217415 17623220 26434830 52869660