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103143222 = 23271362969
BaseRepresentation
bin1100010010111…
…01011100110110
321012002012220100
412021131130312
5202401040342
614122414530
72361463050
oct611353466
9235065810
10103143222
1153249036
122a661446
13184a43c0
14d9ac8d0
1590c5e4c
hex625d736

103143222 has 48 divisors (see below), whose sum is σ = 275052960. Its totient is φ = 27202176.

The previous prime is 103143181. The next prime is 103143223. The reversal of 103143222 is 222341301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 103143195 and 103143204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103143223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29847 + ... + 33122.

It is an arithmetic number, because the mean of its divisors is an integer number (5730270).

Almost surely, 2103143222 is an apocalyptic number.

103143222 is an abundant number, since it is smaller than the sum of its proper divisors (171909738).

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

103143222 is a wasteful number, since it uses less digits than its factorization.

103143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62997 (or 62994 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103143222 is about 10155.9451554250. The cubic root of 103143222 is about 468.9719827539.

Adding to 103143222 its reverse (222341301), we get a palindrome (325484523).

It can be divided in two parts, 1031 and 43222, that added together give a triangular number (44253 = T297).

The spelling of 103143222 in words is "one hundred three million, one hundred forty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 62969 125938 188907 377814 440783 566721 818597 881566 1133442 1322349 1637194 2455791 2644698 3967047 4911582 5730179 7367373 7934094 11460358 14734746 17190537 34381074 51571611 103143222