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1225201415 = 51912896857
BaseRepresentation
bin100100100000111…
…0001011100000111
310011101102200101012
41021001301130013
510002122421130
6321324152435
742235016534
oct11101613407
93141380335
101225201415
11579659a59
122a239871b
13166aa9269
14b8a0dd8b
1572867995
hex49071707

1225201415 has 8 divisors (see below), whose sum is σ = 1547622960. Its totient is φ = 928573632.

The previous prime is 1225201403. The next prime is 1225201433. The reversal of 1225201415 is 5141025221.

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 1225201415 - 224 = 1208424199 is a prime.

It is a super-2 number, since 2×12252014152 = 3002237014636004450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6448334 + ... + 6448523.

It is an arithmetic number, because the mean of its divisors is an integer number (193452870).

Almost surely, 21225201415 is an apocalyptic number.

1225201415 is a deficient number, since it is larger than the sum of its proper divisors (322421545).

1225201415 is a wasteful number, since it uses less digits than its factorization.

1225201415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896881.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1225201415 is about 35002.8772388785. The cubic root of 1225201415 is about 1070.0461199441.

Adding to 1225201415 its reverse (5141025221), we get a palindrome (6366226636).

The spelling of 1225201415 in words is "one billion, two hundred twenty-five million, two hundred one thousand, four hundred fifteen".

Divisors: 1 5 19 95 12896857 64484285 245040283 1225201415