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140660851968 = 2834721323463
BaseRepresentation
bin1000001100000000001…
…0100100010100000000
3111110001220012122020000
42003000002210110000
54301033134230333
6144341350120000
713106464341300
oct2030002442400
9443056178200
10140660851968
1154721424a9a
1223317050000
1310358775570
146b452d5600
1539d3c5e713
hex20c00a4500

140660851968 has 1080 divisors, whose sum is σ = 549462912768. Its totient is φ = 35407798272.

The previous prime is 140660851963. The next prime is 140660851973. The reversal of 140660851968 is 869158066041.

140660851968 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 60 + 8 + 519 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (140660851963) and next prime (140660851973).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140660851963) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 303802905 + ... + 303803367.

Almost surely, 2140660851968 is an apocalyptic number.

140660851968 is a gapful number since it is divisible by the number (18) 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 140660851968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274731456384).

140660851968 is an abundant number, since it is smaller than the sum of its proper divisors (408802060800).

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

140660851968 is a wasteful number, since it uses less digits than its factorization.

140660851968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 140660851968 in words is "one hundred forty billion, six hundred sixty million, eight hundred fifty-one thousand, nine hundred sixty-eight".