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428590848 = 283731627
BaseRepresentation
bin11001100010111…
…100011100000000
31002212110200010010
4121202330130000
51334204401343
6110310104520
713422651000
oct3142743400
91085420103
10428590848
111aaa23714
12bb64b140
136aa4206a
1440cc8000
152795ed33
hex198bc700

428590848 has 144 divisors (see below), whose sum is σ = 1331052800. Its totient is φ = 122379264.

The previous prime is 428590829. The next prime is 428590853. The reversal of 428590848 is 848095824.

It is a super-2 number, since 2×4285908482 = 367380229978718208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 428590797 and 428590806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262611 + ... + 264237.

Almost surely, 2428590848 is an apocalyptic number.

428590848 is a gapful number since it is divisible by the number (48) 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 428590848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665526400).

428590848 is an abundant number, since it is smaller than the sum of its proper divisors (902461952).

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

428590848 is an equidigital number, since it uses as much as digits as its factorization.

428590848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 428590848 is about 20702.4357987170. The cubic root of 428590848 is about 753.9588285793.

The spelling of 428590848 in words is "four hundred twenty-eight million, five hundred ninety thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 343 384 392 448 588 672 686 768 784 896 1029 1176 1344 1372 1568 1627 1792 2058 2352 2688 2744 3136 3254 4116 4704 4881 5376 5488 6272 6508 8232 9408 9762 10976 11389 12544 13016 16464 18816 19524 21952 22778 26032 32928 34167 37632 39048 43904 45556 52064 65856 68334 78096 79723 87808 91112 104128 131712 136668 156192 159446 182224 208256 239169 263424 273336 312384 318892 364448 416512 478338 546672 558061 624768 637784 728896 956676 1093344 1116122 1249536 1275568 1457792 1674183 1913352 2186688 2232244 2551136 2915584 3348366 3826704 4373376 4464488 5102272 6696732 7653408 8746752 8928976 10204544 13393464 15306816 17857952 20409088 26786928 30613632 35715904 53573856 61227264 71431808 107147712 142863616 214295424 428590848