[go: up one dir, main page]

Search a number
-
+
140454000 = 243553172
BaseRepresentation
bin10000101111100…
…10100001110000
3100210021210200000
420113302201300
5241424012000
621534230000
73323560611
oct1027624160
9323253600
10140454000
1172312195
123b055300
1323138b9b
1414921c08
15c4e6000
hex85f2870

140454000 has 360 divisors, whose sum is σ = 540413328. Its totient is φ = 35251200.

The previous prime is 140453981. The next prime is 140454007. The reversal of 140454000 is 454041.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×1404540002 = 39454652232000000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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 (140454007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8261992 + ... + 8262008.

Almost surely, 2140454000 is an apocalyptic number.

140454000 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 140454000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270206664).

140454000 is an abundant number, since it is smaller than the sum of its proper divisors (399959328).

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

140454000 is an equidigital number, since it uses as much as digits as its factorization.

140454000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 140454000 is about 11851.3290393947. The cubic root of 140454000 is about 519.8100884409.

The spelling of 140454000 in words is "one hundred forty million, four hundred fifty-four thousand".