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528942492 = 22321310310973
BaseRepresentation
bin11111100001110…
…000010110011100
31100212022001200200
4133201300112130
52040402124432
6124253023500
716051636251
oct3741602634
91325261620
10528942492
11251635361
12129184b90
1385779930
145036b428
1531683a7c
hex1f87059c

528942492 has 72 divisors (see below), whose sum is σ = 1454011104. Its totient is φ = 161156736.

The previous prime is 528942481. The next prime is 528942509. The reversal of 528942492 is 294249825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42718 + ... + 53690.

Almost surely, 2528942492 is an apocalyptic number.

528942492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528942492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727005552).

528942492 is an abundant number, since it is smaller than the sum of its proper divisors (925068612).

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

528942492 is a wasteful number, since it uses less digits than its factorization.

528942492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099 (or 11094 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 528942492 is about 22998.7497921083. The cubic root of 528942492 is about 808.7286319461.

The spelling of 528942492 in words is "five hundred twenty-eight million, nine hundred forty-two thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 103 117 156 206 234 309 412 468 618 927 1236 1339 1854 2678 3708 4017 5356 8034 10973 12051 16068 21946 24102 32919 43892 48204 65838 98757 131676 142649 197514 285298 395028 427947 570596 855894 1130219 1283841 1711788 2260438 2567682 3390657 4520876 5135364 6781314 10171971 13562628 14692847 20343942 29385694 40687884 44078541 58771388 88157082 132235623 176314164 264471246 528942492