Search a number
-
+
54863830 = 2572197183
BaseRepresentation
bin1101000101001…
…0011111010110
310211020101000201
43101102133112
5103021120310
65235531114
71234222600
oct321223726
9124211021
1054863830
1128a7300a
1216459a9a
13b49c208
147402170
154c3ae3a
hex34527d6

54863830 has 96 divisors (see below), whose sum is σ = 124104960. Its totient is φ = 17357760.

The previous prime is 54863819. The next prime is 54863833. The reversal of 54863830 is 3836845.

It is a self number, because there is not a number n which added to its sum of digits gives 54863830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54863833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 660969 + ... + 661051.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 254863830 is an apocalyptic number.

54863830 is an abundant number, since it is smaller than the sum of its proper divisors (69241130).

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

54863830 is a wasteful number, since it uses less digits than its factorization.

54863830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 54863830 is about 7407.0122181619. The cubic root of 54863830 is about 379.9811394148.

It can be divided in two parts, 5486 and 3830, that added together give a triangular number (9316 = T136).

The spelling of 54863830 in words is "fifty-four million, eight hundred sixty-three thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 71 83 95 98 133 142 166 190 245 266 355 415 490 497 581 665 710 830 931 994 1162 1330 1349 1577 1862 2485 2698 2905 3154 3479 4067 4655 4970 5810 5893 6745 6958 7885 8134 9310 9443 11039 11786 13490 15770 17395 18886 20335 22078 29465 34790 40670 41251 47215 55195 58930 66101 77273 82502 94430 110390 111967 132202 154546 206255 223934 288757 330505 386365 412510 559835 577514 661010 772730 783769 1119670 1443785 1567538 2887570 3918845 5486383 7837690 10972766 27431915 54863830