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140254400 = 26521113613
BaseRepresentation
bin10000101110000…
…01110011000000
3100202220122212102
420113001303000
5241401120100
621530045532
73322066646
oct1027016300
9322818772
10140254400
1172196230
123ab798a8
1323099090
14148ad196
15c4a6cd5
hex85c1cc0

140254400 has 168 divisors, whose sum is σ = 406109424. Its totient is φ = 47001600.

The previous prime is 140254397. The next prime is 140254417. The reversal of 140254400 is 4452041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228494 + ... + 229106.

It is an arithmetic number, because the mean of its divisors is an integer number (2417318).

Almost surely, 2140254400 is an apocalyptic number.

140254400 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 140254400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203054712).

140254400 is an abundant number, since it is smaller than the sum of its proper divisors (265855024).

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

140254400 is a wasteful number, since it uses less digits than its factorization.

140254400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 140254400 is about 11842.9050490156. The cubic root of 140254400 is about 519.5637366555.

The spelling of 140254400 in words is "one hundred forty million, two hundred fifty-four thousand, four hundred".