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2872772 = 227214657
BaseRepresentation
bin1010111101010111000100
312101221200222
422331113010
51213412042
6141323512
733263300
oct12752704
95357628
102872772
1116923a1
12b66598
13797786
1454ad00
153bb2d2
hex2bd5c4

2872772 has 18 divisors (see below), whose sum is σ = 5848542. Its totient is φ = 1231104.

The previous prime is 2872763. The next prime is 2872777. The reversal of 2872772 is 2772782.

It can be written as a sum of positive squares in only one way, i.e., 2869636 + 3136 = 1694^2 + 56^2 .

It is not an unprimeable number, because it can be changed into a prime (2872777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7133 + ... + 7524.

It is an arithmetic number, because the mean of its divisors is an integer number (324919).

22872772 is an apocalyptic number.

It is an amenable number.

2872772 is an abundant number, since it is smaller than the sum of its proper divisors (2975770).

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

2872772 is a wasteful number, since it uses less digits than its factorization.

2872772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675 (or 14666 counting only the distinct ones).

The product of its digits is 21952, while the sum is 35.

The square root of 2872772 is about 1694.9253670885. The cubic root of 2872772 is about 142.1566082791.

The spelling of 2872772 in words is "two million, eight hundred seventy-two thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 98 196 14657 29314 58628 102599 205198 410396 718193 1436386 2872772