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1933097089 = 721125712
BaseRepresentation
bin111001100111000…
…1011100010000001
311222201110111200111
41303032023202001
512424333101324
6515452551321
765622024400
oct16316134201
94881414614
101933097089
11902201500
1245b482541
1324a651441
14144a41637
15b4a99794
hex7338b881

1933097089 has 27 divisors (see below), whose sum is σ = 2476053153. Its totient is φ = 1503671400.

The previous prime is 1933097083. The next prime is 1933097119. The reversal of 1933097089 is 9807903391.

The square root of 1933097089 is 43967.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1933097089 - 27 = 1933096961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1933097083) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3385174 + ... + 3385744.

Almost surely, 21933097089 is an apocalyptic number.

1933097089 is the 43967-th square number.

1933097089 is the 21984-th centered octagonal number.

It is an amenable number.

1933097089 is a deficient number, since it is larger than the sum of its proper divisors (542956064).

1933097089 is an frugal number, since it uses more digits than its factorization.

1933097089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 49.

The cubic root of 1933097089 is about 1245.7126909835.

Multiplying 1933097089 by its sum of digits (49), we get a square (94721757361 = 3077692).

1933097089 divided by its sum of digits (49) gives a square (39450961 = 62812).

The spelling of 1933097089 in words is "one billion, nine hundred thirty-three million, ninety-seven thousand, eighty-nine".

Divisors: 1 7 11 49 77 121 539 571 847 3997 5929 6281 27979 43967 69091 307769 326041 483637 2282287 3385459 3586451 15976009 25105157 39450961 175736099 276156727 1933097089