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1025034520 = 23525625863
BaseRepresentation
bin111101000110001…
…100100100011000
32122102210011000111
4331012030210120
54044402101040
6245414014104
734254435556
oct7506144430
92572704014
101025034520
11486672674
12247347334
13134494003
149a1c6bd6
155eec8dea
hex3d18c918

1025034520 has 16 divisors (see below), whose sum is σ = 2306327760. Its totient is φ = 410013792.

The previous prime is 1025034509. The next prime is 1025034523. The reversal of 1025034520 is 254305201.

It is a junction number, because it is equal to n+sod(n) for n = 1025034491 and 1025034500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025034523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12812892 + ... + 12812971.

It is an arithmetic number, because the mean of its divisors is an integer number (144145485).

Almost surely, 21025034520 is an apocalyptic number.

1025034520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025034520 is an abundant number, since it is smaller than the sum of its proper divisors (1281293240).

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

1025034520 is a wasteful number, since it uses less digits than its factorization.

1025034520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25625874 (or 25625870 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1025034520 is about 32016.1602944513. The cubic root of 1025034520 is about 1008.2761562795.

Adding to 1025034520 its reverse (254305201), we get a palindrome (1279339721).

The spelling of 1025034520 in words is "one billion, twenty-five million, thirty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 25625863 51251726 102503452 128129315 205006904 256258630 512517260 1025034520