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250000000400 = 24522412593361
BaseRepresentation
bin1110100011010100101…
…0010100010110010000
3212220021221002212200002
43220311022110112100
513044000000003100
6310503131345132
724030142640633
oct3506512242620
9786257085602
10250000000400
119702a534587
12405505b21a8
131a76208c127
14c158811c1a
156782d192d5
hex3a35294590

250000000400 has 60 divisors (see below), whose sum is σ = 603117453444. Its totient is φ = 99585024000.

The previous prime is 250000000399. The next prime is 250000000403. The reversal of 250000000400 is 4000000052.

It can be written as a sum of positive squares in 6 ways, for example, as 3718072576 + 246281927824 = 60976^2 + 496268^2 .

It is a sliding number, since 250000000400 = 400 + 250000000000 and 1/400 + 1/250000000000 = 0.00250000000400.

It is not an unprimeable number, because it can be changed into a prime (250000000403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200281 + ... + 1393080.

Almost surely, 2250000000400 is an apocalyptic number.

250000000400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250000000400 is an abundant number, since it is smaller than the sum of its proper divisors (353117453044).

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

250000000400 is a wasteful number, since it uses less digits than its factorization.

250000000400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593620 (or 2593609 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

Adding to 250000000400 its reverse (4000000052), we get a palindrome (254000000452).

It can be divided in two parts, 250000000 and 400, that multiplied together give a 11-th power (100000000000 = 1011).

The spelling of 250000000400 in words is "two hundred fifty billion, four hundred", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 241 400 482 964 1205 1928 2410 3856 4820 6025 9640 12050 19280 24100 48200 96400 2593361 5186722 10373444 12966805 20746888 25933610 41493776 51867220 64834025 103734440 129668050 207468880 259336100 518672200 625000001 1037344400 1250000002 2500000004 3125000005 5000000008 6250000010 10000000016 12500000020 15625000025 25000000040 31250000050 50000000080 62500000100 125000000200 250000000400