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215041120 = 25571011901
BaseRepresentation
bin11001101000101…
…00010001100000
3112222122012221221
430310110101200
5420022303440
633201024424
75220551020
oct1464242140
9488565857
10215041120
11100426638
1260025114
1335722588
14207b9a80
1513d2ad4a
hexcd14460

215041120 has 96 divisors (see below), whose sum is σ = 586668096. Its totient is φ = 72960000.

The previous prime is 215041117. The next prime is 215041129. The reversal of 215041120 is 21140512.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 215041094 and 215041103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215041129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112170 + ... + 114070.

It is an arithmetic number, because the mean of its divisors is an integer number (6111126).

Almost surely, 2215041120 is an apocalyptic number.

215041120 is a gapful number since it is divisible by the number (20) 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 215041120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293334048).

215041120 is an abundant number, since it is smaller than the sum of its proper divisors (371626976).

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

215041120 is a wasteful number, since it uses less digits than its factorization.

215041120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 215041120 is about 14664.2804119398. The cubic root of 215041120 is about 599.1108310968.

Adding to 215041120 its reverse (21140512), we get a palindrome (236181632).

The spelling of 215041120 in words is "two hundred fifteen million, forty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 101 112 140 160 202 224 280 404 505 560 707 808 1010 1120 1414 1616 1901 2020 2828 3232 3535 3802 4040 5656 7070 7604 8080 9505 11312 13307 14140 15208 16160 19010 22624 26614 28280 30416 38020 53228 56560 60832 66535 76040 106456 113120 133070 152080 192001 212912 266140 304160 384002 425824 532280 768004 960005 1064560 1344007 1536008 1920010 2129120 2688014 3072016 3840020 5376028 6144032 6720035 7680040 10752056 13440070 15360080 21504112 26880140 30720160 43008224 53760280 107520560 215041120