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2872530 = 233510639
BaseRepresentation
bin1010111101010011010010
312101221101000
422331103102
51213410110
6141322430
733262503
oct12752322
95357330
102872530
1116921a1
12b66416
1379762b
1454abaa
153bb1c0
hex2bd4d2

2872530 has 32 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 765936.

The previous prime is 2872523. The next prime is 2872531. The reversal of 2872530 is 352782.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2872494 and 2872503.

It is not an unprimeable number, because it can be changed into a prime (2872531) 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, 5050 + ... + 5589.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

22872530 is an apocalyptic number.

2872530 is an abundant number, since it is smaller than the sum of its proper divisors (4788270).

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

2872530 is a wasteful number, since it uses less digits than its factorization.

2872530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10655 (or 10649 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2872530 is about 1694.8539760109. The cubic root of 2872530 is about 142.1526164476.

The spelling of 2872530 in words is "two million, eight hundred seventy-two thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 10639 21278 31917 53195 63834 95751 106390 159585 191502 287253 319170 478755 574506 957510 1436265 2872530