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192139299072 = 28367197741
BaseRepresentation
bin1011001011110001100…
…1010000100100000000
3200100221111222201000000
42302330121100210000
511122000130032242
6224133444000000
716611251044410
oct2627431204400
9610844881000
10192139299072
1174538697256
12312a3090000
13151708cc356
14942a118640
154ee82e2a4c
hex2cbc650900

192139299072 has 504 divisors, whose sum is σ = 691853610560. Its totient is φ = 52000911360.

The previous prime is 192139299049. The next prime is 192139299097. The reversal of 192139299072 is 270992931291.

It is a tau number, because it is divible by the number of its divisors (504).

It is a super-2 number, since 2×1921392990722 (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 24817122 + ... + 24824862.

Almost surely, 2192139299072 is an apocalyptic number.

192139299072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192139299072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345926805280).

192139299072 is an abundant number, since it is smaller than the sum of its proper divisors (499714311488).

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

192139299072 is an frugal number, since it uses more digits than its factorization.

192139299072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801 (or 7772 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The spelling of 192139299072 in words is "one hundred ninety-two billion, one hundred thirty-nine million, two hundred ninety-nine thousand, seventy-two".