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1968942924 = 2233131782493
BaseRepresentation
bin111010101011011…
…1010111101001100
312002012220122221000
41311112322331030
513013022133144
6523213140300
766535511244
oct16526727514
95065818830
101968942924
11920464a63
1246b48a690
13254bc21b0
141496d2b24
15b7cca769
hex755baf4c

1968942924 has 96 divisors (see below), whose sum is σ = 5820776640. Its totient is φ = 570184704.

The previous prime is 1968942919. The next prime is 1968943007. The reversal of 1968942924 is 4292498691.

1968942924 is a `hidden beast` number, since 196 + 8 + 9 + 429 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 17379 + ... + 65114.

It is an arithmetic number, because the mean of its divisors is an integer number (60633090).

Almost surely, 21968942924 is an apocalyptic number.

It is an amenable number.

1968942924 is an abundant number, since it is smaller than the sum of its proper divisors (3851833716).

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

1968942924 is a wasteful number, since it uses less digits than its factorization.

1968942924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82536 (or 82528 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1968942924 is about 44372.7723271828. The cubic root of 1968942924 is about 1253.3654214724.

The spelling of 1968942924 in words is "one billion, nine hundred sixty-eight million, nine hundred forty-two thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 13 17 18 26 27 34 36 39 51 52 54 68 78 102 108 117 153 156 204 221 234 306 351 442 459 468 612 663 702 884 918 1326 1404 1836 1989 2652 3978 5967 7956 11934 23868 82493 164986 247479 329972 494958 742437 989916 1072409 1402381 1484874 2144818 2227311 2804762 2969748 3217227 4207143 4289636 4454622 5609524 6434454 8414286 8909244 9651681 12621429 12868908 16828572 18230953 19303362 25242858 28955043 36461906 37864287 38606724 50485716 54692859 57910086 72923812 75728574 109385718 115820172 151457148 164078577 218771436 328157154 492235731 656314308 984471462 1968942924