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25160993 = 1113251701
BaseRepresentation
bin101111111111…
…0110100100001
31202100022101122
41133332310201
522420122433
62255142025
7423602444
oct137766441
952308348
1025160993
1113225910
128514915
13529c580
1434ad65b
152320198
hex17fed21

25160993 has 16 divisors (see below), whose sum is σ = 29719872. Its totient is φ = 21000000.

The previous prime is 25160987. The next prime is 25161001. The reversal of 25160993 is 39906152.

It is a cyclic number.

It is not a de Polignac number, because 25160993 - 26 = 25160929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25160903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35543 + ... + 36243.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 225160993 is an apocalyptic number.

It is an amenable number.

25160993 is a deficient number, since it is larger than the sum of its proper divisors (4558879).

25160993 is a wasteful number, since it uses less digits than its factorization.

25160993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 25160993 is about 5016.0734643743. The cubic root of 25160993 is about 293.0280931490.

The spelling of 25160993 in words is "twenty-five million, one hundred sixty thousand, nine hundred ninety-three".

Divisors: 1 11 13 143 251 701 2761 3263 7711 9113 35893 100243 175951 1935461 2287363 25160993