Search a number
-
+
155470860 = 223351272267
BaseRepresentation
bin10010100010001…
…00110000001100
3101211112201221000
421101010300030
5304300031420
623232140300
73565323546
oct1121046014
9354481830
10155470860
117a839616
1244097690
13262960bc
1416910696
15d9b0690
hex9444c0c

155470860 has 96 divisors (see below), whose sum is σ = 487710720. Its totient is φ = 41114304.

The previous prime is 155470853. The next prime is 155470871. The reversal of 155470860 is 68074551.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 67447 + ... + 69713.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2155470860 is an apocalyptic number.

155470860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155470860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243855360).

155470860 is an abundant number, since it is smaller than the sum of its proper divisors (332239860).

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

155470860 is a wasteful number, since it uses less digits than its factorization.

155470860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 155470860 is about 12468.7954510450. The cubic root of 155470860 is about 537.7119236436.

The spelling of 155470860 in words is "one hundred fifty-five million, four hundred seventy thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 127 135 180 254 270 381 508 540 635 762 1143 1270 1524 1905 2267 2286 2540 3429 3810 4534 4572 5715 6801 6858 7620 9068 11335 11430 13602 13716 17145 20403 22670 22860 27204 34005 34290 40806 45340 61209 68010 68580 81612 102015 122418 136020 204030 244836 287909 306045 408060 575818 612090 863727 1151636 1224180 1439545 1727454 2591181 2879090 3454908 4318635 5182362 5758180 7773543 8637270 10364724 12955905 15547086 17274540 25911810 31094172 38867715 51823620 77735430 155470860