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2972372128 = 251112896551
BaseRepresentation
bin1011000100101010…
…1100110010100000
321200011001011000121
42301022230302200
522041411402003
61210540130024
7133441513645
oct26112546240
97604034017
102972372128
1112959101a0
126ab536914
13384a6019b
14202a93dcc
15125e37cbd
hexb12acca0

2972372128 has 48 divisors (see below), whose sum is σ = 6389772480. Its totient is φ = 1349824000.

The previous prime is 2972372107. The next prime is 2972372131. The reversal of 2972372128 is 8212732792.

It is a super-2 number, since 2×29723721282 = 17669992134622496768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450453 + ... + 457003.

It is an arithmetic number, because the mean of its divisors is an integer number (133120260).

Almost surely, 22972372128 is an apocalyptic number.

It is an amenable number.

2972372128 is an abundant number, since it is smaller than the sum of its proper divisors (3417400352).

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

2972372128 is a wasteful number, since it uses less digits than its factorization.

2972372128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861 (or 7853 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 2972372128 is about 54519.4655879898. The cubic root of 2972372128 is about 1437.8085442093.

The spelling of 2972372128 in words is "two billion, nine hundred seventy-two million, three hundred seventy-two thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1289 2578 5156 6551 10312 13102 14179 20624 26204 28358 41248 52408 56716 72061 104816 113432 144122 209632 226864 288244 453728 576488 1152976 2305952 8444239 16888478 33776956 67553912 92886629 135107824 185773258 270215648 371546516 743093032 1486186064 2972372128