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25302802830 = 235843426761
BaseRepresentation
bin10111100100001010…
…100010000110001110
32102022101200120012120
4113210022202012032
5403310004142310
615342434513410
71554012163314
oct274412420616
972271616176
1025302802830
11a8048552a8
124aa1a35866
1325031a5ca6
14132068a0b4
159d1586b70
hex5e42a218e

25302802830 has 16 divisors (see below), whose sum is σ = 60726726864. Its totient is φ = 6747414080.

The previous prime is 25302802787. The next prime is 25302802831. The reversal of 25302802830 is 3820820352.

It is a junction number, because it is equal to n+sod(n) for n = 25302802791 and 25302802800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25302802831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421713351 + ... + 421713410.

It is an arithmetic number, because the mean of its divisors is an integer number (3795420429).

Almost surely, 225302802830 is an apocalyptic number.

25302802830 is an abundant number, since it is smaller than the sum of its proper divisors (35423924034).

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

25302802830 is a wasteful number, since it uses less digits than its factorization.

25302802830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843426771.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 25302802830 in words is "twenty-five billion, three hundred two million, eight hundred two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 843426761 1686853522 2530280283 4217133805 5060560566 8434267610 12651401415 25302802830