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1923090772372 = 2271117950116961
BaseRepresentation
bin11011111111000001001…
…001000111000110010100
320210211211111120021120221
4123333001021013012110
5223001442214203442
64031242233204124
7255636660566440
oct33770111070624
96724744507527
101923090772372
1168163a673840
1227085b260644
1310c467876463
14691143c9820
1535056033467
hex1bfc1247194

1923090772372 has 96 divisors (see below), whose sum is σ = 4220723082240. Its totient is φ = 744814656000.

The previous prime is 1923090772367. The next prime is 1923090772391. The reversal of 1923090772372 is 2732770903291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276262972 + ... + 276269932.

It is an arithmetic number, because the mean of its divisors is an integer number (43965865440).

Almost surely, 21923090772372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923090772372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2110361541120).

1923090772372 is an abundant number, since it is smaller than the sum of its proper divisors (2297632309868).

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

1923090772372 is a wasteful number, since it uses less digits than its factorization.

1923090772372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173 (or 12171 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 52.

The spelling of 1923090772372 in words is "one trillion, nine hundred twenty-three billion, ninety million, seven hundred seventy-two thousand, three hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 179 308 358 716 1253 1969 2506 3938 5011 5012 6961 7876 10022 13783 13922 20044 27566 27844 35077 48727 55121 55132 70154 76571 97454 110242 140308 153142 194908 220484 306284 385847 535997 771694 896969 1071994 1246019 1543388 1793938 2143988 2492038 3587876 4984076 6278783 8722133 9866659 12557566 13706209 17444266 19733318 25115132 27412418 34881571 34888532 39466636 54824836 69066613 69763142 95943463 138133226 139526284 191886926 244170997 276266452 383697281 383773852 488341994 767394562 976683988 1534789124 2685880967 5371761934 6243801209 10743523868 12487602418 24975204836 43706608463 68681813299 87413216926 137363626598 174826433852 274727253196 480772693093 961545386186 1923090772372