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13212200426 = 237178543249
BaseRepresentation
bin11000100111000001…
…00010110111101010
31021002210002022201112
430103200202313222
5204024310403201
610023011150322
7645260564525
oct142340426752
937083068645
1013212200426
11566aa40807
1226888a53a2
13132733b299
148d4a05bbc
15524dbb0bb
hex313822dea

13212200426 has 8 divisors (see below), whose sum is σ = 20353930500. Its totient is φ = 6427556928.

The previous prime is 13212200423. The next prime is 13212200429. The reversal of 13212200426 is 62400221231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13212200423) and next prime (13212200429).

It can be written as a sum of positive squares in 2 ways, for example, as 9564644401 + 3647556025 = 97799^2 + 60395^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13212200423) 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, 89271551 + ... + 89271698.

Almost surely, 213212200426 is an apocalyptic number.

13212200426 is a deficient number, since it is larger than the sum of its proper divisors (7141730074).

13212200426 is a wasteful number, since it uses less digits than its factorization.

13212200426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178543288.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13212200426 its reverse (62400221231), we get a palindrome (75612421657).

The spelling of 13212200426 in words is "thirteen billion, two hundred twelve million, two hundred thousand, four hundred twenty-six".

Divisors: 1 2 37 74 178543249 357086498 6606100213 13212200426