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2256180 = 2235311213
BaseRepresentation
bin1000100110110100110100
311020121220020
420212310310
51034144210
6120205140
725114533
oct10466464
94217806
102256180
111301113
129097b0
1360cc24
1442a31a
152e8770
hex226d34

2256180 has 48 divisors (see below), whose sum is σ = 6526464. Its totient is φ = 581760.

The previous prime is 2256179. The next prime is 2256181. The reversal of 2256180 is 816522.

It is an interprime number because it is at equal distance from previous prime (2256179) and next prime (2256181).

It is a self number, because there is not a number n which added to its sum of digits gives 2256180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256181) 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, 1254 + ... + 2466.

It is an arithmetic number, because the mean of its divisors is an integer number (135968).

22256180 is an apocalyptic number.

2256180 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 2256180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3263232).

2256180 is an abundant number, since it is smaller than the sum of its proper divisors (4270284).

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

2256180 is a wasteful number, since it uses less digits than its factorization.

2256180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2256180 is about 1502.0585874060. The cubic root of 2256180 is about 131.1569317541.

The spelling of 2256180 in words is "two million, two hundred fifty-six thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1213 1860 2426 3639 4852 6065 7278 12130 14556 18195 24260 36390 37603 72780 75206 112809 150412 188015 225618 376030 451236 564045 752060 1128090 2256180