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25330210340 = 2251266510517
BaseRepresentation
bin10111100101110011…
…000101011000100100
32102101022021000020112
4113211303011120210
5403334013212330
615345254152152
71554464143511
oct274563053044
972338230215
1025330210340
11a819274a36
124aab052658
132508a80c56
141324182308
159d3b9c795
hex5e5cc5624

25330210340 has 12 divisors (see below), whose sum is σ = 53193441756. Its totient is φ = 10132084128.

The previous prime is 25330210319. The next prime is 25330210349. The reversal of 25330210340 is 4301203352.

It can be written as a sum of positive squares in 2 ways, for example, as 9492994624 + 15837215716 = 97432^2 + 125846^2 .

It is not an unprimeable number, because it can be changed into a prime (25330210349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633255239 + ... + 633255278.

It is an arithmetic number, because the mean of its divisors is an integer number (4432786813).

Almost surely, 225330210340 is an apocalyptic number.

25330210340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25330210340 is an abundant number, since it is smaller than the sum of its proper divisors (27863231416).

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

25330210340 is a wasteful number, since it uses less digits than its factorization.

25330210340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266510526 (or 1266510524 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 25330210340 its reverse (4301203352), we get a palindrome (29631413692).

The spelling of 25330210340 in words is "twenty-five billion, three hundred thirty million, two hundred ten thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1266510517 2533021034 5066042068 6332552585 12665105170 25330210340