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538265288 = 2311171929653
BaseRepresentation
bin100000000101010…
…100011011001000
31101111211201011102
4200011110123020
52100243442123
6125224520532
716224115361
oct4005243310
91344751142
10538265288
11256922750
12130320148
1387692192
14516b6b68
15323c6028
hex201546c8

538265288 has 128 divisors (see below), whose sum is σ = 1271376000. Its totient is φ = 210309120.

The previous prime is 538265279. The next prime is 538265309. The reversal of 538265288 is 882562835.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823970 + ... + 824622.

It is an arithmetic number, because the mean of its divisors is an integer number (9932625).

Almost surely, 2538265288 is an apocalyptic number.

538265288 is a gapful number since it is divisible by the number (58) 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 538265288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635688000).

538265288 is an abundant number, since it is smaller than the sum of its proper divisors (733110712).

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

538265288 is a wasteful number, since it uses less digits than its factorization.

538265288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 731 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 538265288 is about 23200.5449935987. The cubic root of 538265288 is about 813.4523620177.

The spelling of 538265288 in words is "five hundred thirty-eight million, two hundred sixty-five thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 17 19 22 29 34 38 44 58 68 76 88 116 136 152 187 209 232 319 323 374 418 493 551 638 646 653 748 836 986 1102 1276 1292 1306 1496 1672 1972 2204 2552 2584 2612 3553 3944 4408 5224 5423 6061 7106 7183 9367 10846 11101 12122 12407 14212 14366 18734 18937 21692 22202 24244 24814 28424 28732 37468 37874 43384 44404 48488 49628 57464 74936 75748 88808 99256 103037 122111 136477 151496 206074 208307 210919 244222 272954 321929 359803 412148 416614 421838 488444 545908 643858 719606 824296 833228 843676 976888 1091816 1287716 1439212 1666456 1687352 2320109 2575432 2878424 3541219 3957833 4640218 6116651 7082438 7915666 9280436 12233302 14164876 15831332 18560872 24466604 28329752 31662664 48933208 67283161 134566322 269132644 538265288