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13302231222 = 237499634709
BaseRepresentation
bin11000110001101111…
…11111000010110110
31021100001111100202110
430120313333002312
5204220332344342
610035544551450
7650433046140
oct143067770266
937301440673
1013302231222
115706843225
1226b2a82586
13133cba1247
1490295dc90
1552cc51c9c
hex318dff0b6

13302231222 has 32 divisors (see below), whose sum is σ = 30466080000. Its totient is φ = 3793015008.

The previous prime is 13302231221. The next prime is 13302231233. The reversal of 13302231222 is 22213220331.

It is a happy number.

It is a super-2 number, since 2×133022312222 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13302231221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296397 + ... + 338312.

It is an arithmetic number, because the mean of its divisors is an integer number (952065000).

Almost surely, 213302231222 is an apocalyptic number.

13302231222 is an abundant number, since it is smaller than the sum of its proper divisors (17163848778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13302231222 is a wasteful number, since it uses less digits than its factorization.

13302231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635220.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13302231222 its reverse (22213220331), we get a palindrome (35515451553).

The spelling of 13302231222 in words is "thirteen billion, three hundred two million, two hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 499 998 1497 2994 3493 6986 10479 20958 634709 1269418 1904127 3808254 4442963 8885926 13328889 26657778 316719791 633439582 950159373 1900318746 2217038537 4434077074 6651115611 13302231222