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25213070 = 252521307
BaseRepresentation
bin110000000101…
…1100010001110
31202102221211102
41200023202032
522423304240
62300223102
7424210331
oct140134216
952387742
1025213070
1113260a53
12853aa92
1352ba19c
1434c4618
152330815
hex180b88e

25213070 has 8 divisors (see below), whose sum is σ = 45383544. Its totient is φ = 10085224.

The previous prime is 25213063. The next prime is 25213079. The reversal of 25213070 is 7031252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260644 + ... + 1260663.

It is an arithmetic number, because the mean of its divisors is an integer number (5672943).

Almost surely, 225213070 is an apocalyptic number.

25213070 is a deficient number, since it is larger than the sum of its proper divisors (20170474).

25213070 is a wasteful number, since it uses less digits than its factorization.

25213070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521314.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 25213070 is about 5021.2617936132. The cubic root of 25213070 is about 293.2301189321.

The spelling of 25213070 in words is "twenty-five million, two hundred thirteen thousand, seventy".

Divisors: 1 2 5 10 2521307 5042614 12606535 25213070