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130217542 = 27132471171
BaseRepresentation
bin1111100001011…
…11011001000110
3100002000201212221
413300233121012
5231313430132
620531002554
73140554660
oct760573106
9302021787
10130217542
1167560404
123773945a
1320c93800
1413419530
15b672e97
hex7c2f646

130217542 has 48 divisors (see below), whose sum is σ = 247076352. Its totient is φ = 50375520.

The previous prime is 130217533. The next prime is 130217551. The reversal of 130217542 is 245712031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130217533) and next prime (130217551).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110617 + ... + 111787.

It is an arithmetic number, because the mean of its divisors is an integer number (5147424).

Almost surely, 2130217542 is an apocalyptic number.

130217542 is a deficient number, since it is larger than the sum of its proper divisors (116858810).

130217542 is a wasteful number, since it uses less digits than its factorization.

130217542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 130217542 is about 11411.2901111136. The cubic root of 130217542 is about 506.8621145965.

Adding to 130217542 its reverse (245712031), we get a palindrome (375929573).

The spelling of 130217542 in words is "one hundred thirty million, two hundred seventeen thousand, five hundred forty-two".

Divisors: 1 2 7 13 14 26 47 91 94 169 182 329 338 611 658 1171 1183 1222 2342 2366 4277 7943 8197 8554 15223 15886 16394 30446 55037 55601 106561 110074 111202 197899 213122 385259 395798 715481 770518 1385293 1430962 2770586 5008367 9301253 10016734 18602506 65108771 130217542