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100168432 = 2471389773
BaseRepresentation
bin1011111100001…
…11001011110000
320222111002020221
411332013023300
5201120342212
613534542424
72324263150
oct576071360
9228432227
10100168432
11515a7031
1229667a14
13179a2380
14d436760
158bd9807
hex5f872f0

100168432 has 80 divisors (see below), whose sum is σ = 241859520. Its totient is φ = 39131136.

The previous prime is 100168391. The next prime is 100168447. The reversal of 100168432 is 234861001.

It is a junction number, because it is equal to n+sod(n) for n = 100168397 and 100168406.

It is a congruent number.

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, 129198 + ... + 129970.

It is an arithmetic number, because the mean of its divisors is an integer number (3023244).

Almost surely, 2100168432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100168432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120929760).

100168432 is an abundant number, since it is smaller than the sum of its proper divisors (141691088).

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

100168432 is a wasteful number, since it uses less digits than its factorization.

100168432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 100168432 is about 10008.4180568160. The cubic root of 100168432 is about 464.4193345517.

The spelling of 100168432 in words is "one hundred million, one hundred sixty-eight thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 89 91 104 112 178 182 208 356 364 623 712 728 773 1157 1246 1424 1456 1546 2314 2492 3092 4628 4984 5411 6184 8099 9256 9968 10049 10822 12368 16198 18512 20098 21644 32396 40196 43288 64792 68797 70343 80392 86576 129584 137594 140686 160784 275188 281372 481579 550376 562744 894361 963158 1100752 1125488 1788722 1926316 3577444 3852632 6260527 7154888 7705264 12521054 14309776 25042108 50084216 100168432