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140054250 = 23537237103
BaseRepresentation
bin10000101100100…
…00111011101010
3100202112111022110
420112100323222
5241323214000
621521503150
73320304300
oct1026207352
9322474273
10140054250
1172069916
123aaa1ab6
1323028c4b
141485a270
15c467850
hex8590eea

140054250 has 192 divisors, whose sum is σ = 421694208. Its totient is φ = 30844800.

The previous prime is 140054221. The next prime is 140054251. The reversal of 140054250 is 52450041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140054251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1359699 + ... + 1359801.

It is an arithmetic number, because the mean of its divisors is an integer number (2196324).

Almost surely, 2140054250 is an apocalyptic number.

140054250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140054250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210847104).

140054250 is an abundant number, since it is smaller than the sum of its proper divisors (281639958).

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

140054250 is a wasteful number, since it uses less digits than its factorization.

140054250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 140054250 is about 11834.4518250741. The cubic root of 140054250 is about 519.3164712393.

The spelling of 140054250 in words is "one hundred forty million, fifty-four thousand, two hundred fifty".