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502949664 = 25327317787
BaseRepresentation
bin11101111110100…
…110011100100000
31022001101111020100
4131332212130200
52012223342124
6121523542400
715315000360
oct3576463440
91261344210
10502949664
112389a1588
1212052aa00
1380278869
144ab229a0
152e24c1c9
hex1dfa6720

502949664 has 144 divisors (see below), whose sum is σ = 1641826368. Its totient is φ = 143064576.

The previous prime is 502949659. The next prime is 502949669. The reversal of 502949664 is 466949205.

It is an interprime number because it is at equal distance from previous prime (502949659) and next prime (502949669).

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (502949669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638679 + ... + 639465.

It is an arithmetic number, because the mean of its divisors is an integer number (11401572).

Almost surely, 2502949664 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 502949664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820913184).

502949664 is an abundant number, since it is smaller than the sum of its proper divisors (1138876704).

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

502949664 is a wasteful number, since it uses less digits than its factorization.

502949664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 502949664 is about 22426.5392782747. The cubic root of 502949664 is about 795.2582334244.

The spelling of 502949664 in words is "five hundred two million, nine hundred forty-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 317 336 504 634 672 787 951 1008 1268 1574 1902 2016 2219 2361 2536 2853 3148 3804 4438 4722 5072 5509 5706 6296 6657 7083 7608 8876 9444 10144 11018 11412 12592 13314 14166 15216 16527 17752 18888 19971 22036 22824 25184 26628 28332 30432 33054 35504 37776 39942 44072 45648 49581 53256 56664 66108 71008 75552 79884 88144 91296 99162 106512 113328 132216 159768 176288 198324 213024 226656 249479 264432 319536 396648 498958 528864 639072 748437 793296 997916 1496874 1586592 1746353 1995832 2245311 2993748 3492706 3991664 4490622 5239059 5987496 6985412 7983328 8981244 10478118 11974992 13970824 15717177 17962488 20956236 23949984 27941648 31434354 35924976 41912472 55883296 62868708 71849952 83824944 125737416 167649888 251474832 502949664