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207112388 = 22719735333
BaseRepresentation
bin11000101100001…
…00100011000100
3112102201101210012
430112010203010
5411010044023
632315045352
75063266130
oct1426044304
9472641705
10207112388
11a6a0066a
1259440858
1333ba7712
141d7143c0
15132b1978
hexc5848c4

207112388 has 48 divisors (see below), whose sum is σ = 442081920. Its totient is φ = 82923264.

The previous prime is 207112379. The next prime is 207112391. The reversal of 207112388 is 883211702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36170 + ... + 41502.

It is an arithmetic number, because the mean of its divisors is an integer number (9210040).

Almost surely, 2207112388 is an apocalyptic number.

207112388 is a gapful number since it is divisible by the number (28) 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 207112388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221040960).

207112388 is an abundant number, since it is smaller than the sum of its proper divisors (234969532).

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

207112388 is a wasteful number, since it uses less digits than its factorization.

207112388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436 (or 5434 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 207112388 is about 14391.3997929319. The cubic root of 207112388 is about 591.6552084360.

The spelling of 207112388 in words is "two hundred seven million, one hundred twelve thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 19 28 38 73 76 133 146 266 292 511 532 1022 1387 2044 2774 5333 5548 9709 10666 19418 21332 37331 38836 74662 101327 149324 202654 389309 405308 709289 778618 1418578 1557236 2725163 2837156 5450326 7396871 10900652 14793742 29587484 51778097 103556194 207112388