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140841680 = 24572193161
BaseRepresentation
bin10000110010100…
…01001011010000
3100211000111110112
420121101023100
5242023413210
621550420452
73330064100
oct1031211320
9324014415
10140841680
1172557491
123b201728
1323243495
14149c3200
15c570d05
hex86512d0

140841680 has 240 divisors, whose sum is σ = 420687360. Its totient is φ = 43545600.

The previous prime is 140841643. The next prime is 140841691. The reversal of 140841680 is 86148041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2308850 + ... + 2308910.

It is an arithmetic number, because the mean of its divisors is an integer number (1752864).

Almost surely, 2140841680 is an apocalyptic number.

140841680 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 140841680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210343680).

140841680 is an abundant number, since it is smaller than the sum of its proper divisors (279845680).

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

140841680 is a wasteful number, since it uses less digits than its factorization.

140841680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 140841680 is about 11867.6737400385. The cubic root of 140841680 is about 520.2879076263.

The spelling of 140841680 in words is "one hundred forty million, eight hundred forty-one thousand, six hundred eighty".