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140256480 = 2535713319
BaseRepresentation
bin10000101110000…
…10010011100000
3100202220202201110
420113002103200
5241401201410
621530103320
73322106010
oct1027022340
9322822643
10140256480
1172197851
123ab7ab40
132309a000
14148adc40
15c4a7720
hex85c24e0

140256480 has 384 divisors, whose sum is σ = 575769600. Its totient is φ = 28035072.

The previous prime is 140256437. The next prime is 140256481. The reversal of 140256480 is 84652041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140256481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7381911 + ... + 7381929.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2140256480 is an apocalyptic number.

140256480 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 140256480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287884800).

140256480 is an abundant number, since it is smaller than the sum of its proper divisors (435513120).

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

140256480 is a wasteful number, since it uses less digits than its factorization.

140256480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 140256480 is about 11842.9928649814. The cubic root of 140256480 is about 519.5663050532.

The spelling of 140256480 in words is "one hundred forty million, two hundred fifty-six thousand, four hundred eighty".