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88030140 = 223511133379
BaseRepresentation
bin1010011111100…
…11101110111100
320010122101122120
411033303232330
5140013431030
612422442540
72116146432
oct517635674
9203571576
1088030140
1145766390
1225593450
1315312453
14b996d52
157add010
hex53f3bbc

88030140 has 48 divisors (see below), whose sum is σ = 268894080. Its totient is φ = 21340480.

The previous prime is 88030139. The next prime is 88030147. The reversal of 88030140 is 4103088.

It is a self number, because there is not a number n which added to its sum of digits gives 88030140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88030147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66030 + ... + 67349.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 288030140 is an apocalyptic number.

It is an amenable number.

88030140 is an abundant number, since it is smaller than the sum of its proper divisors (180863940).

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

88030140 is a wasteful number, since it uses less digits than its factorization.

88030140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133402 (or 133400 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 88030140 is about 9382.4378495144. The cubic root of 88030140 is about 444.8467931962.

The spelling of 88030140 in words is "eighty-eight million, thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 133379 266758 400137 533516 666895 800274 1333790 1467169 1600548 2000685 2667580 2934338 4001370 4401507 5868676 7335845 8002740 8803014 14671690 17606028 22007535 29343380 44015070 88030140