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140033680 = 2454737243
BaseRepresentation
bin10000101100010…
…11111010010000
3100202111110002121
420112023322100
5241322034210
621521224024
73320160313
oct1026137220
9322443077
10140033680
1172055416
123aa92014
132301c787
141485297a
15c4616da
hex858be90

140033680 has 40 divisors (see below), whose sum is σ = 332514432. Its totient is φ = 54820224.

The previous prime is 140033657. The next prime is 140033681. The reversal of 140033680 is 86330041.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (140033681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14862 + ... + 22381.

Almost surely, 2140033680 is an apocalyptic number.

140033680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140033680 is an abundant number, since it is smaller than the sum of its proper divisors (192480752).

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

140033680 is a wasteful number, since it uses less digits than its factorization.

140033680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37303 (or 37297 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140033680 is about 11833.5827203768. The cubic root of 140033680 is about 519.2910457040.

The spelling of 140033680 in words is "one hundred forty million, thirty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 47 80 94 188 235 376 470 752 940 1880 3760 37243 74486 148972 186215 297944 372430 595888 744860 1489720 1750421 2979440 3500842 7001684 8752105 14003368 17504210 28006736 35008420 70016840 140033680