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402253105 = 5188942589
BaseRepresentation
bin10111111110011…
…110010100110001
31001000220120112011
4113332132110301
51310434044410
6103525402521
712653044402
oct2776362461
91030816464
10402253105
11197074791
12b2869441
136544ccb7
143b5cd9a9
15254ab18a
hex17f9e531

402253105 has 8 divisors (see below), whose sum is σ = 482970600. Its totient is φ = 321624576.

The previous prime is 402253081. The next prime is 402253129. The reversal of 402253105 is 501352204.

It is an interprime number because it is at equal distance from previous prime (402253081) and next prime (402253129).

It can be written as a sum of positive squares in 4 ways, for example, as 4210704 + 398042401 = 2052^2 + 19951^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 402253105 - 29 = 402252593 is a prime.

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, 11850 + ... + 30739.

It is an arithmetic number, because the mean of its divisors is an integer number (60371325).

Almost surely, 2402253105 is an apocalyptic number.

It is an amenable number.

402253105 is a deficient number, since it is larger than the sum of its proper divisors (80717495).

402253105 is a wasteful number, since it uses less digits than its factorization.

402253105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44483.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 402253105 is about 20056.2485275786. The cubic root of 402253105 is about 738.1871286354.

Subtracting 402253105 from its reverse (501352204), we obtain a palindrome (99099099).

The spelling of 402253105 in words is "four hundred two million, two hundred fifty-three thousand, one hundred five".

Divisors: 1 5 1889 9445 42589 212945 80450621 402253105