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1072660983 = 341107149547
BaseRepresentation
bin111111111011111…
…000000111110111
32202202101211020120
4333323320013313
54144100122413
6254234503023
735403316332
oct7773700767
92682354216
101072660983
11500542089
1225b294a73
131412cac54
14a2663619
1564285723
hex3fef81f7

1072660983 has 32 divisors (see below), whose sum is σ = 1491436800. Its totient is φ = 685251840.

The previous prime is 1072660957. The next prime is 1072660991. The reversal of 1072660983 is 3890662701.

It is a happy number.

It is not a de Polignac number, because 1072660983 - 28 = 1072660727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072660933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1960716 + ... + 1961262.

It is an arithmetic number, because the mean of its divisors is an integer number (46607400).

Almost surely, 21072660983 is an apocalyptic number.

1072660983 is a deficient number, since it is larger than the sum of its proper divisors (418775817).

1072660983 is a wasteful number, since it uses less digits than its factorization.

1072660983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1072660983 is about 32751.5035227392. The cubic root of 1072660983 is about 1023.6562945476.

The spelling of 1072660983 in words is "one billion, seventy-two million, six hundred sixty thousand, nine hundred eighty-three".

Divisors: 1 3 41 107 123 149 321 447 547 1641 4387 6109 13161 15943 18327 22427 47829 58529 67281 81503 175587 244509 653663 1960989 2399689 3341623 7199067 8720821 10024869 26162463 357553661 1072660983