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100380168 = 23337197337
BaseRepresentation
bin1011111101110…
…10111000001000
320222212211201000
411332322320020
5201144131133
613543255000
72326134360
oct576727010
9228784630
10100380168
1151731119
122974a460
1317a47865
14d48d9a0
158c2c413
hex5fbae08

100380168 has 128 divisors (see below), whose sum is σ = 321235200. Its totient is φ = 28449792.

The previous prime is 100380167. The next prime is 100380179. The reversal of 100380168 is 861083001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (100380167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297696 + ... + 298032.

It is an arithmetic number, because the mean of its divisors is an integer number (2509650).

Almost surely, 2100380168 is an apocalyptic number.

100380168 is a gapful number since it is divisible by the number (18) 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 100380168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160617600).

100380168 is an abundant number, since it is smaller than the sum of its proper divisors (220855032).

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

100380168 is a wasteful number, since it uses less digits than its factorization.

100380168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 100380168 is about 10018.9903682956. The cubic root of 100380168 is about 464.7463340704.

The spelling of 100380168 in words is "one hundred million, three hundred eighty thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 197 216 252 337 378 394 504 591 674 756 788 1011 1182 1348 1379 1512 1576 1773 2022 2359 2364 2696 2758 3033 3546 4044 4137 4718 4728 5319 5516 6066 7077 7092 8088 8274 9099 9436 10638 11032 12132 12411 14154 14184 16548 18198 18872 21231 21276 24264 24822 28308 33096 36396 37233 42462 42552 49644 56616 63693 66389 72792 74466 84924 99288 127386 132778 148932 169848 199167 254772 265556 297864 398334 464723 509544 531112 597501 796668 929446 1195002 1394169 1593336 1792503 1858892 2390004 2788338 3585006 3717784 4182507 4780008 5576676 7170012 8365014 11153352 12547521 14340024 16730028 25095042 33460056 50190084 100380168