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498523480 = 235713151907
BaseRepresentation
bin11101101101101…
…101110101011000
31021202001121122121
4131231231311120
52010110222410
6121245031024
715232244140
oct3555556530
91252047577
10498523480
11236449084
1211ab55474
137c389010
144a2cd920
152db759da
hex1db6dd58

498523480 has 128 divisors (see below), whose sum is σ = 1391201280. Its totient is φ = 156556800.

The previous prime is 498523471. The next prime is 498523489. The reversal of 498523480 is 84325894.

It is an interprime number because it is at equal distance from previous prime (498523471) and next prime (498523489).

It is a super-2 number, since 2×4985234802 = 497051320222620800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498523489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549187 + ... + 550093.

It is an arithmetic number, because the mean of its divisors is an integer number (10868760).

Almost surely, 2498523480 is an apocalyptic number.

498523480 is a gapful number since it is divisible by the number (40) 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 498523480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695600640).

498523480 is an abundant number, since it is smaller than the sum of its proper divisors (892677800).

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

498523480 is a wasteful number, since it uses less digits than its factorization.

498523480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 498523480 is about 22327.6393736552. The cubic root of 498523480 is about 792.9184792060.

The spelling of 498523480 in words is "four hundred ninety-eight million, five hundred twenty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 151 182 260 280 302 364 455 520 604 728 755 907 910 1057 1208 1510 1814 1820 1963 2114 3020 3628 3640 3926 4228 4535 5285 6040 6349 7256 7852 8456 9070 9815 10570 11791 12698 13741 15704 18140 19630 21140 23582 25396 27482 31745 36280 39260 42280 47164 50792 54964 58955 63490 68705 78520 82537 94328 109928 117910 126980 136957 137410 165074 235820 253960 273914 274820 330148 412685 471640 547828 549640 660296 684785 825370 958699 1095656 1369570 1650740 1780441 1917398 2739140 3301480 3560882 3834796 4793495 5478280 7121764 7669592 8902205 9586990 12463087 14243528 17804410 19173980 24926174 35608820 38347960 49852348 62315435 71217640 99704696 124630870 249261740 498523480