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25161302023 = 1113421417941
BaseRepresentation
bin10111011011101110…
…110000000000000111
32101221112102120120221
4113123232300000013
5403012243131043
615320422005211
71550343352444
oct273356600007
971845376527
1025161302023
11a741998690
124a62576807
1324aca917c0
1413099749cb
159c3e358ed
hex5dbbb0007

25161302023 has 16 divisors (see below), whose sum is σ = 29630416032. Its totient is φ = 21064176000.

The previous prime is 25161302017. The next prime is 25161302027. The reversal of 25161302023 is 32020316152.

It is a cyclic number.

It is not a de Polignac number, because 25161302023 - 29 = 25161301511 is a prime.

It is a super-2 number, since 2×251613020232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25161302027) 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 15 ways as a sum of consecutive naturals, for example, 148768 + ... + 269173.

It is an arithmetic number, because the mean of its divisors is an integer number (1851901002).

Almost surely, 225161302023 is an apocalyptic number.

25161302023 is a deficient number, since it is larger than the sum of its proper divisors (4469114009).

25161302023 is a wasteful number, since it uses less digits than its factorization.

25161302023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418386.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 25161302023 its reverse (32020316152), we get a palindrome (57181618175).

It can be divided in two parts, 25161 and 302023, that added together give a square (327184 = 5722).

The spelling of 25161302023 in words is "twenty-five billion, one hundred sixty-one million, three hundred two thousand, twenty-three".

Divisors: 1 11 13 143 421 4631 5473 60203 417941 4597351 5433233 59765563 175953161 1935484771 2287391093 25161302023