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25990004700 = 223252112625253
BaseRepresentation
bin11000001101000111…
…111111111111011100
32111002021210000221200
4120031013333333130
5411211420122300
615534543555500
71610025252312
oct301507777734
974067700850
1025990004700
1110027753230
125053bbbb90
1325b268400a
141387a520b2
15a21a7c200
hex60d1fffdc

25990004700 has 108 divisors (see below), whose sum is σ = 88870098408. Its totient is φ = 6300604800.

The previous prime is 25990004687. The next prime is 25990004723. The reversal of 25990004700 is 740009952.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1302727 + ... + 1322526.

Almost surely, 225990004700 is an apocalyptic number.

25990004700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25990004700 is an abundant number, since it is smaller than the sum of its proper divisors (62880093708).

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

25990004700 is a wasteful number, since it uses less digits than its factorization.

25990004700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625284 (or 2625274 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 25990004700 in words is "twenty-five billion, nine hundred ninety million, four thousand, seven hundred".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 25 30 33 36 44 45 50 55 60 66 75 90 99 100 110 132 150 165 180 198 220 225 275 300 330 396 450 495 550 660 825 900 990 1100 1650 1980 2475 3300 4950 9900 2625253 5250506 7875759 10501012 13126265 15751518 23627277 26252530 28877783 31503036 39378795 47254554 52505060 57755566 65631325 78757590 86633349 94509108 115511132 118136385 131262650 144388915 157515180 173266698 196893975 236272770 259900047 262525300 288777830 346533396 393787950 433166745 472545540 519800094 577555660 590681925 721944575 787575900 866333490 1039600188 1181363850 1299500235 1443889150 1732666980 2165833725 2362727700 2599000470 2887778300 4331667450 5198000940 6497501175 8663334900 12995002350 25990004700