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55130031510 = 23517497321737
BaseRepresentation
bin110011010110000000…
…011000010110010110
312021022002212202212220
4303112000120112112
51400401242002020
641154255523210
73661113351561
oct632600302626
9167262782786
1055130031510
1121420513714
12a826b29506
135277828528
14294db9d4d8
151679e34240
hexcd6018596

55130031510 has 64 divisors (see below), whose sum is σ = 140129756352. Its totient is φ = 13833138176.

The previous prime is 55130031499. The next prime is 55130031511. The reversal of 55130031510 is 1513003155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55130031511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2525362 + ... + 2547098.

It is an arithmetic number, because the mean of its divisors is an integer number (2189527443).

Almost surely, 255130031510 is an apocalyptic number.

55130031510 is an abundant number, since it is smaller than the sum of its proper divisors (84999724842).

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

55130031510 is a wasteful number, since it uses less digits than its factorization.

55130031510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26737.

The product of its (nonzero) digits is 1125, while the sum is 24.

Adding to 55130031510 its reverse (1513003155), we get a palindrome (56643034665).

The spelling of 55130031510 in words is "fifty-five billion, one hundred thirty million, thirty-one thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 4973 9946 14919 21737 24865 29838 43474 49730 65211 74595 84541 108685 130422 149190 169082 217370 253623 326055 369529 422705 507246 652110 739058 845410 1108587 1268115 1847645 2217174 2536230 3695290 5542935 11085870 108098101 216196202 324294303 540490505 648588606 1080981010 1621471515 1837667717 3242943030 3675335434 5513003151 9188338585 11026006302 18376677170 27565015755 55130031510