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100164240 = 243251112647
BaseRepresentation
bin1011111100001…
…10001010010000
320222110212111200
411332012022100
5201120223430
613534511200
72324245011
oct576061220
9228425450
10100164240
11515a3970
1229665500
13179a04a7
14d435008
158bd8460
hex5f86290

100164240 has 120 divisors (see below), whose sum is σ = 366994368. Its totient is φ = 24280320.

The previous prime is 100164227. The next prime is 100164247. The reversal of 100164240 is 42461001.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100164247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1597 + ... + 14243.

Almost surely, 2100164240 is an apocalyptic number.

100164240 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 100164240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183497184).

100164240 is an abundant number, since it is smaller than the sum of its proper divisors (266830128).

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

100164240 is a wasteful number, since it uses less digits than its factorization.

100164240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12677 (or 12668 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 100164240 is about 10008.2086309189. The cubic root of 100164240 is about 464.4128558872.

The spelling of 100164240 in words is "one hundred million, one hundred sixty-four thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 132 144 165 176 180 198 220 240 264 330 360 396 440 495 528 660 720 792 880 990 1320 1584 1980 2640 3960 7920 12647 25294 37941 50588 63235 75882 101176 113823 126470 139117 151764 189705 202352 227646 252940 278234 303528 379410 417351 455292 505880 556468 569115 607056 695585 758820 834702 910584 1011760 1112936 1138230 1252053 1391170 1517640 1669404 1821168 2086755 2225872 2276460 2504106 2782340 3035280 3338808 4173510 4552920 5008212 5564680 6260265 6677616 8347020 9105840 10016424 11129360 12520530 16694040 20032848 25041060 33388080 50082120 100164240