Search a number
-
+
140974680 = 233571121973
BaseRepresentation
bin10000110011100…
…01101001011000
3100211021020220110
420121301221120
5242042142210
621553324320
73331156620
oct1031615130
9324236813
10140974680
1172638400
123b2666a0
132328bb92
1414a19880
15c59a420
hex8671a58

140974680 has 384 divisors, whose sum is σ = 566899200. Its totient is φ = 27371520.

The previous prime is 140974679. The next prime is 140974681. The reversal of 140974680 is 86479041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140974679) and next prime (140974681).

It is a super-3 number, since 3×1409746803 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140974681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1931124 + ... + 1931196.

It is an arithmetic number, because the mean of its divisors is an integer number (1476300).

Almost surely, 2140974680 is an apocalyptic number.

140974680 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 140974680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283449600).

140974680 is an abundant number, since it is smaller than the sum of its proper divisors (425924520).

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

140974680 is a wasteful number, since it uses less digits than its factorization.

140974680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 140974680 is about 11873.2758748376. The cubic root of 140974680 is about 520.4516293345.

The spelling of 140974680 in words is "one hundred forty million, nine hundred seventy-four thousand, six hundred eighty".