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1213004310232 = 2311131815858113
BaseRepresentation
bin10001101001101100101…
…100001110011011011000
311021221222100121111222011
4101221230230032123120
5124333213100411412
62325125124035304
7153431243341651
oct21515454163330
94257870544864
101213004310232
11428483345920
12177108832b34
138a502838530
14429d1696528
15218466de7a7
hex11a6cb0e6d8

1213004310232 has 64 divisors (see below), whose sum is σ = 2686765404960. Its totient is φ = 506140876800.

The previous prime is 1213004310191. The next prime is 1213004310233. The reversal of 1213004310232 is 2320134003121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213004310233) 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, 2721993 + ... + 3136120.

Almost surely, 21213004310232 is an apocalyptic number.

It is an amenable number.

1213004310232 is an abundant number, since it is smaller than the sum of its proper divisors (1473761094728).

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

1213004310232 is a wasteful number, since it uses less digits than its factorization.

1213004310232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858324 (or 5858320 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1213004310232 its reverse (2320134003121), we get a palindrome (3533138313353).

The spelling of 1213004310232 in words is "one trillion, two hundred thirteen billion, four million, three hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 181 286 362 572 724 1144 1448 1991 2353 3982 4706 7964 9412 15928 18824 25883 51766 103532 207064 5858113 11716226 23432452 46864904 64439243 76155469 128878486 152310938 257756972 304621876 515513944 609243752 837710159 1060318453 1675420318 2120636906 3350840636 4241273812 6701681272 8482547624 11663502983 13784139889 23327005966 27568279778 46654011932 55136559556 93308023864 110273119112 151625538779 303251077558 606502155116 1213004310232