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1025090304 = 2837474057
BaseRepresentation
bin111101000110011…
…010001100000000
32122102212222112120
4331012122030000
54044410342204
6245415124240
734255060320
oct7506321400
92572788476
101025090304
11486700577
12247373680
131344b3514
149a1dd280
155eeda6d9
hex3d19a300

1025090304 has 144 divisors (see below), whose sum is σ = 3185107968. Its totient is φ = 286580736.

The previous prime is 1025090273. The next prime is 1025090317. The reversal of 1025090304 is 4030905201.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 250644 + ... + 254700.

Almost surely, 21025090304 is an apocalyptic number.

1025090304 is a gapful number since it is divisible by the number (14) 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 1025090304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592553984).

1025090304 is an abundant number, since it is smaller than the sum of its proper divisors (2160017664).

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

1025090304 is an equidigital number, since it uses as much as digits as its factorization.

1025090304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1025090304 is about 32017.0314676423. The cubic root of 1025090304 is about 1008.2944466088.

Adding to 1025090304 its reverse (4030905201), we get a palindrome (5055995505).

The spelling of 1025090304 in words is "one billion, twenty-five million, ninety thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 47 48 56 64 84 94 96 112 128 141 168 188 192 224 256 282 329 336 376 384 448 564 658 672 752 768 896 987 1128 1316 1344 1504 1792 1974 2256 2632 2688 3008 3948 4057 4512 5264 5376 6016 7896 8114 9024 10528 12032 12171 15792 16228 18048 21056 24342 28399 31584 32456 36096 42112 48684 56798 63168 64912 84224 85197 97368 113596 126336 129824 170394 190679 194736 227192 252672 259648 340788 381358 389472 454384 519296 572037 681576 762716 778944 908768 1038592 1144074 1334753 1363152 1525432 1557888 1817536 2288148 2669506 2726304 3050864 3115776 3635072 4004259 4576296 5339012 5452608 6101728 7270144 8008518 9152592 10678024 10905216 12203456 16017036 18305184 21356048 21810432 24406912 32034072 36610368 42712096 48813824 64068144 73220736 85424192 128136288 146441472 170848384 256272576 341696768 512545152 1025090304