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25970245 = 57319797
BaseRepresentation
bin110001100010…
…0011001000101
31210212102110221
41203010121011
523122021440
62324344341
7433513000
oct143043105
953772427
1025970245
1113728914
1288450b1
1354c3a12
143640537
15242ed4a
hex18c4645

25970245 has 32 divisors (see below), whose sum is σ = 38304000. Its totient is φ = 16849728.

The previous prime is 25970239. The next prime is 25970251. The reversal of 25970245 is 54207952.

It is an interprime number because it is at equal distance from previous prime (25970239) and next prime (25970251).

It is not a de Polignac number, because 25970245 - 27 = 25970117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25970245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32187 + ... + 32983.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 225970245 is an apocalyptic number.

It is an amenable number.

25970245 is a deficient number, since it is larger than the sum of its proper divisors (12333755).

25970245 is an equidigital number, since it uses as much as digits as its factorization.

25970245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 25970245 is about 5096.1009605384. The cubic root of 25970245 is about 296.1365520734.

The spelling of 25970245 in words is "twenty-five million, nine hundred seventy thousand, two hundred forty-five".

Divisors: 1 5 7 19 35 49 95 133 245 343 665 797 931 1715 3985 4655 5579 6517 15143 27895 32585 39053 75715 106001 195265 273371 530005 742007 1366855 3710035 5194049 25970245