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2872438228 = 221165282687
BaseRepresentation
bin1010101100110101…
…1110110111010100
321102011222222111001
42223031132313110
521340321010403
61153010153044
7131116215322
oct25315366724
97364888431
102872438228
1112444643a0
12681b82784
1336a1407ba
141d36bcd12
1511c297c1d
hexab35edd4

2872438228 has 12 divisors (see below), whose sum is σ = 5483745792. Its totient is φ = 1305653720.

The previous prime is 2872438199. The next prime is 2872438301. The reversal of 2872438228 is 8228342782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32641300 + ... + 32641387.

It is an arithmetic number, because the mean of its divisors is an integer number (456978816).

Almost surely, 22872438228 is an apocalyptic number.

It is an amenable number.

2872438228 is a deficient number, since it is larger than the sum of its proper divisors (2611307564).

2872438228 is a wasteful number, since it uses less digits than its factorization.

2872438228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65282702 (or 65282700 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The square root of 2872438228 is about 53595.1325028682. The cubic root of 2872438228 is about 1421.5110259407.

It can be divided in two parts, 28724382 and 28, that added together give a triangular number (28724410 = T7579).

The spelling of 2872438228 in words is "two billion, eight hundred seventy-two million, four hundred thirty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 22 44 65282687 130565374 261130748 718109557 1436219114 2872438228