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2825850440 = 235773138251
BaseRepresentation
bin1010100001101111…
…0000111001001000
321021221100002001102
42220123300321020
521241404203230
61144223440532
7130012222010
oct25033607110
97257302042
102825850440
111220134296
1266a456148
133605ab56a
141cb432c40
15118144045
hexa86f0e48

2825850440 has 64 divisors (see below), whose sum is σ = 7366066560. Its totient is φ = 955584000.

The previous prime is 2825850431. The next prime is 2825850493. The reversal of 2825850440 is 440585282.

It is a junction number, because it is equal to n+sod(n) for n = 2825850394 and 2825850403.

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, 48686 + ... + 89565.

It is an arithmetic number, because the mean of its divisors is an integer number (115094790).

Almost surely, 22825850440 is an apocalyptic number.

2825850440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2825850440 is an abundant number, since it is smaller than the sum of its proper divisors (4540216120).

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

2825850440 is a wasteful number, since it uses less digits than its factorization.

2825850440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138342 (or 138338 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 2825850440 is about 53158.7287282155. The cubic root of 2825850440 is about 1413.7839844411.

The spelling of 2825850440 in words is "two billion, eight hundred twenty-five million, eight hundred fifty thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 73 140 146 280 292 365 511 584 730 1022 1460 2044 2555 2920 4088 5110 10220 20440 138251 276502 553004 691255 967757 1106008 1382510 1935514 2765020 3871028 4838785 5530040 7742056 9677570 10092323 19355140 20184646 38710280 40369292 50461615 70646261 80738584 100923230 141292522 201846460 282585044 353231305 403692920 565170088 706462610 1412925220 2825850440