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27869130 = 2335233443
BaseRepresentation
bin110101001001…
…1111111001010
31221102220021000
41222103333022
524113303010
62433155430
7455612052
oct152237712
957386230
1027869130
1114805543
1293bbb76
135a0a113
1439b6562
1526a77c0
hex1a93fca

27869130 has 64 divisors (see below), whose sum is σ = 74805120. Its totient is φ = 7383168.

The previous prime is 27869111. The next prime is 27869147. The reversal of 27869130 is 3196872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62689 + ... + 63131.

It is an arithmetic number, because the mean of its divisors is an integer number (1168830).

Almost surely, 227869130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27869130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37402560).

27869130 is an abundant number, since it is smaller than the sum of its proper divisors (46935990).

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

27869130 is a wasteful number, since it uses less digits than its factorization.

27869130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 27869130 is about 5279.1220861048. The cubic root of 27869130 is about 303.1850648677.

The spelling of 27869130 in words is "twenty-seven million, eight hundred sixty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 233 270 443 466 699 886 1165 1329 1398 2097 2215 2330 2658 3495 3987 4194 4430 6291 6645 6990 7974 10485 11961 12582 13290 19935 20970 23922 31455 39870 59805 62910 103219 119610 206438 309657 516095 619314 928971 1032190 1548285 1857942 2786913 3096570 4644855 5573826 9289710 13934565 27869130