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1025343040 = 2658813637
BaseRepresentation
bin111101000111010…
…111111001000000
32122110100211020011
4331013113321000
54044441434130
6245424354304
734260162211
oct7507277100
92573324204
101025343040
11486863447
12247475994
13134571577
149a267408
156003a52a
hex3d1d7e40

1025343040 has 56 divisors (see below), whose sum is σ = 2445041592. Its totient is φ = 409559040.

The previous prime is 1025343029. The next prime is 1025343071. The reversal of 1025343040 is 403435201.

It can be written as a sum of positive squares in 4 ways, for example, as 27793984 + 997549056 = 5272^2 + 31584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280102 + ... + 283738.

It is an arithmetic number, because the mean of its divisors is an integer number (43661457).

Almost surely, 21025343040 is an apocalyptic number.

1025343040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025343040 is an abundant number, since it is smaller than the sum of its proper divisors (1419698552).

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

1025343040 is an equidigital number, since it uses as much as digits as its factorization.

1025343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535 (or 4525 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1025343040 is about 32020.9781237238. The cubic root of 1025343040 is about 1008.3773047934.

Adding to 1025343040 its reverse (403435201), we get a palindrome (1428778241).

The spelling of 1025343040 in words is "one billion, twenty-five million, three hundred forty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 881 1762 3524 3637 4405 7048 7274 8810 14096 14548 17620 18185 28192 29096 35240 36370 56384 58192 70480 72740 116384 140960 145480 232768 281920 290960 581920 1163840 3204197 6408394 12816788 16020985 25633576 32041970 51267152 64083940 102534304 128167880 205068608 256335760 512671520 1025343040