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25300000212 = 22319310924007
BaseRepresentation
bin10111100011111111…
…110101110111010100
32102022012102011201220
4113203333311313110
5403303300001322
615342254450340
71553646311364
oct274377656724
972265364656
1025300000212
11a803210693
124aa0b039b0
132502734436
14132015a9a4
159d11d155c
hex5e3ff5dd4

25300000212 has 24 divisors (see below), whose sum is σ = 59339211456. Its totient is φ = 8389636608.

The previous prime is 25300000199. The next prime is 25300000241. The reversal of 25300000212 is 21200000352.

It is a junction number, because it is equal to n+sod(n) for n = 25300000191 and 25300000200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5459688 + ... + 5464319.

It is an arithmetic number, because the mean of its divisors is an integer number (2472467144).

Almost surely, 225300000212 is an apocalyptic number.

It is an amenable number.

25300000212 is an abundant number, since it is smaller than the sum of its proper divisors (34039211244).

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

25300000212 is a wasteful number, since it uses less digits than its factorization.

25300000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10924207 (or 10924205 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 25300000212 its reverse (21200000352), we get a palindrome (46500000564).

The spelling of 25300000212 in words is "twenty-five billion, three hundred million, two hundred twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 193 386 579 772 1158 2316 10924007 21848014 32772021 43696028 65544042 131088084 2108333351 4216666702 6325000053 8433333404 12650000106 25300000212