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25212070 = 2513193939
BaseRepresentation
bin110000000101…
…1010010100110
31202102220110101
41200023102212
522423241240
62300214314
7424204402
oct140132246
952386411
1025212070
1113260224
12853a39a
1352b98b0
1434c4102
15233039a
hex180b4a6

25212070 has 16 divisors (see below), whose sum is σ = 48872880. Its totient is φ = 9309024.

The previous prime is 25212067. The next prime is 25212097. The reversal of 25212070 is 7021252.

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, 96840 + ... + 97099.

It is an arithmetic number, because the mean of its divisors is an integer number (3054555).

Almost surely, 225212070 is an apocalyptic number.

25212070 is a deficient number, since it is larger than the sum of its proper divisors (23660810).

25212070 is a wasteful number, since it uses less digits than its factorization.

25212070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193959.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 25212070 is about 5021.1622160611. The cubic root of 25212070 is about 293.2262421862.

The spelling of 25212070 in words is "twenty-five million, two hundred twelve thousand, seventy".

Divisors: 1 2 5 10 13 26 65 130 193939 387878 969695 1939390 2521207 5042414 12606035 25212070