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140211450 = 232521923231
BaseRepresentation
bin10000101101101…
…11010011111010
3100202211110221200
420112313103322
5241343231300
621525115030
73321530511
oct1026672372
9322743850
10140211450
1172166a35
123ab58a76
1323082672
141489b678
15c499200
hex85b74fa

140211450 has 216 divisors, whose sum is σ = 427889280. Its totient is φ = 32788800.

The previous prime is 140211437. The next prime is 140211451. The reversal of 140211450 is 54112041.

140211450 is a `hidden beast` number, since 1 + 4 + 0 + 211 + 450 = 666.

140211450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1402114502 = 39318501422205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140211451) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 4522935 + ... + 4522965.

Almost surely, 2140211450 is an apocalyptic number.

140211450 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 140211450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213944640).

140211450 is an abundant number, since it is smaller than the sum of its proper divisors (287677830).

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

140211450 is a wasteful number, since it uses less digits than its factorization.

140211450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 140211450 is about 11841.0915881941. The cubic root of 140211450 is about 519.5106960361.

Adding to 140211450 its reverse (54112041), we get a palindrome (194323491).

The spelling of 140211450 in words is "one hundred forty million, two hundred eleven thousand, four hundred fifty".