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140489294400 = 26335271322749
BaseRepresentation
bin1000001011010111010…
…0001000001001000000
3111102121221101121111000
42002311310020021000
54300210224410100
6144312341052000
713102312204410
oct2026564101100
9442557347430
10140489294400
11546435a9284
12232896b7000
131032c069300
146b2a5d8640
1539c3b72900
hex20b5d08240

140489294400 has 1008 divisors, whose sum is σ = 634014480000. Its totient is φ = 29630914560.

The previous prime is 140489294369. The next prime is 140489294423. The reversal of 140489294400 is 4492984041.

140489294400 is a `hidden beast` number, since 1 + 40 + 489 + 2 + 94 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 51104226 + ... + 51106974.

Almost surely, 2140489294400 is an apocalyptic number.

140489294400 is a gapful number since it is divisible by the number (10) 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 140489294400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317007240000).

140489294400 is an abundant number, since it is smaller than the sum of its proper divisors (493525185600).

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

140489294400 is a wasteful number, since it uses less digits than its factorization.

140489294400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 140489294400 in words is "one hundred forty billion, four hundred eighty-nine million, two hundred ninety-four thousand, four hundred".