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11245032520 = 235893158717
BaseRepresentation
bin10100111100100000…
…11001010001001000
31002000200111211122221
422132100121101020
5141012212020040
65055500023424
7545443125241
oct123620312110
932020454587
1011245032520
114850589407
122219b31b74
1310a291acc7
14789655cc8
1545c34174a
hex29e419448

11245032520 has 32 divisors (see below), whose sum is σ = 25585615800. Its totient is φ = 4447472128.

The previous prime is 11245032497. The next prime is 11245032521. The reversal of 11245032520 is 2523054211.

It can be written as a sum of positive squares in 4 ways, for example, as 7737313444 + 3507719076 = 87962^2 + 59226^2 .

It is not an unprimeable number, because it can be changed into a prime (11245032521) 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 7 ways as a sum of consecutive naturals, for example, 1575799 + ... + 1582918.

Almost surely, 211245032520 is an apocalyptic number.

11245032520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11245032520 is an abundant number, since it is smaller than the sum of its proper divisors (14340583280).

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

11245032520 is a wasteful number, since it uses less digits than its factorization.

11245032520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158817 (or 3158813 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 11245032520 its reverse (2523054211), we get a palindrome (13768086731).

The spelling of 11245032520 in words is "eleven billion, two hundred forty-five million, thirty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 89 178 356 445 712 890 1780 3560 3158717 6317434 12634868 15793585 25269736 31587170 63174340 126348680 281125813 562251626 1124503252 1405629065 2249006504 2811258130 5622516260 11245032520