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51882930 = 236511647
BaseRepresentation
bin1100010111101…
…0101110110010
310121121221000000
43011322232302
5101240223210
65052010430
71166666121
oct305725662
9117557000
1051882930
1127317460
1215460a16
13a997478
146c67ab8
15484cac0
hex317abb2

51882930 has 112 divisors (see below), whose sum is σ = 152985024. Its totient is φ = 12558240.

The previous prime is 51882911. The next prime is 51882949. The reversal of 51882930 is 3928815.

It is an interprime number because it is at equal distance from previous prime (51882911) and next prime (51882949).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 79867 + ... + 80513.

It is a vampire number, since it can be written as 58238910 (with its own digits).

Almost surely, 251882930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51882930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76492512).

51882930 is an abundant number, since it is smaller than the sum of its proper divisors (101102094).

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

51882930 is a wasteful number, since it uses less digits than its factorization.

51882930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 51882930 is about 7202.9806330435. The cubic root of 51882930 is about 372.9707993921.

It can be divided in two parts, 5188 and 2930, that added together give a palindrome (8118).

The spelling of 51882930 in words is "fifty-one million, eight hundred eighty-two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 135 162 165 198 243 270 297 330 405 486 495 594 647 729 810 891 990 1215 1294 1458 1485 1782 1941 2430 2673 2970 3235 3645 3882 4455 5346 5823 6470 7117 7290 8019 8910 9705 11646 13365 14234 16038 17469 19410 21351 26730 29115 34938 35585 40095 42702 52407 58230 64053 71170 80190 87345 104814 106755 128106 157221 174690 192159 213510 262035 314442 320265 384318 471663 524070 576477 640530 786105 943326 960795 1152954 1572210 1729431 1921590 2358315 2882385 3458862 4716630 5188293 5764770 8647155 10376586 17294310 25941465 51882930