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55512333030 = 23571153453421
BaseRepresentation
bin110011101100110010…
…101111101011100110
312022021202020200222110
4303230302233223212
51402142124124110
641300233541450
74003435021350
oct635462575346
9168252220873
1055512333030
11215a72a0490
12a912b74886
135308ab114b
1429888780d0
15169d79da20
hexceccafae6

55512333030 has 128 divisors (see below), whose sum is σ = 169238854656. Its totient is φ = 11317363200.

The previous prime is 55512333029. The next prime is 55512333047. The reversal of 55512333030 is 3033321555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104281 + ... + 349140.

It is an arithmetic number, because the mean of its divisors is an integer number (1322178552).

Almost surely, 255512333030 is an apocalyptic number.

55512333030 is an abundant number, since it is smaller than the sum of its proper divisors (113726521626).

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

55512333030 is a wasteful number, since it uses less digits than its factorization.

55512333030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453502.

The product of its (nonzero) digits is 20250, while the sum is 30.

Adding to 55512333030 its reverse (3033321555), we get a palindrome (58545654585).

The spelling of 55512333030 in words is "fifty-five billion, five hundred twelve million, three hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 53 55 66 70 77 105 106 110 154 159 165 210 231 265 318 330 371 385 462 530 583 742 770 795 1113 1155 1166 1590 1749 1855 2226 2310 2915 3498 3710 4081 5565 5830 8162 8745 11130 12243 17490 20405 24486 40810 61215 122430 453421 906842 1360263 2267105 2720526 3173947 4534210 4987631 6347894 6801315 9521841 9975262 13602630 14962893 15869735 19043682 24031313 24938155 29925786 31739470 34913417 47609205 48062626 49876310 69826834 72093939 74814465 95218410 104740251 120156565 144187878 149628930 168219191 174567085 209480502 240313130 264344443 336438382 349134170 360469695 504657573 523701255 528688886 720939390 793033329 841095955 1009315146 1047402510 1321722215 1586066658 1682191910 1850411101 2523287865 2643444430 3700822202 3965166645 5046575730 5551233303 7930333290 9252055505 11102466606 18504111010 27756166515 55512333030