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2215043120 = 245101274139
BaseRepresentation
bin1000010000000110…
…1110000000110000
312201100222211221002
42010001232000300
514014022334440
61003444021132
7105614361443
oct20401560060
95640884832
102215043120
11a37374754
125199917a8
13293b9a804
1417027565a
15ce6de115
hex8406e030

2215043120 has 40 divisors (see below), whose sum is σ = 5200984080. Its totient is φ = 877241600.

The previous prime is 2215043107. The next prime is 2215043141. The reversal of 2215043120 is 213405122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2215043092 and 2215043101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128990 + ... + 145149.

It is an arithmetic number, because the mean of its divisors is an integer number (130024602).

Almost surely, 22215043120 is an apocalyptic number.

2215043120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215043120 is an abundant number, since it is smaller than the sum of its proper divisors (2985940960).

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

2215043120 is a wasteful number, since it uses less digits than its factorization.

2215043120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274253 (or 274247 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2215043120 is about 47064.2446024580. The cubic root of 2215043120 is about 1303.5491026410.

Adding to 2215043120 its reverse (213405122), we get a palindrome (2428448242).

The spelling of 2215043120 in words is "two billion, two hundred fifteen million, forty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 101 202 404 505 808 1010 1616 2020 4040 8080 274139 548278 1096556 1370695 2193112 2741390 4386224 5482780 10965560 21931120 27688039 55376078 110752156 138440195 221504312 276880390 443008624 553760780 1107521560 2215043120