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1972263972 = 223743546031
BaseRepresentation
bin111010110001110…
…0101110000100100
312002110011101112210
41311203211300210
513014344421342
6523412243420
766605652510
oct16543456044
95073141483
101972263972
11922323128
12470610570
132557b5a03
14149d19140
15b823479c
hex758e5c24

1972263972 has 48 divisors (see below), whose sum is σ = 5381691392. Its totient is φ = 550398240.

The previous prime is 1972263967. The next prime is 1972264013. The reversal of 1972263972 is 2793622791.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269404 + ... + 276627.

Almost surely, 21972263972 is an apocalyptic number.

1972263972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1972263972 is an abundant number, since it is smaller than the sum of its proper divisors (3409427420).

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

1972263972 is a wasteful number, since it uses less digits than its factorization.

1972263972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546088 (or 546086 counting only the distinct ones).

The product of its digits is 571536, while the sum is 48.

The square root of 1972263972 is about 44410.1786981318. The cubic root of 1972263972 is about 1254.0697162414.

The spelling of 1972263972 in words is "one billion, nine hundred seventy-two million, two hundred sixty-three thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 43 84 86 129 172 258 301 516 602 903 1204 1806 3612 546031 1092062 1638093 2184124 3276186 3822217 6552372 7644434 11466651 15288868 22933302 23479333 45866604 46958666 70437999 93917332 140875998 164355331 281751996 328710662 493065993 657421324 986131986 1972263972