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100160640 = 2732517389
BaseRepresentation
bin1011111100001…
…01010010000000
320222110200120100
411332011102000
5201120120030
613534442400
72324231346
oct576052200
9228420510
10100160640
11515a1198
1229663400
131799b968
14d433996
158bd7360
hex5f85480

100160640 has 96 divisors (see below), whose sum is σ = 345887100. Its totient is φ = 26707968.

The previous prime is 100160629. The next prime is 100160677. The reversal of 100160640 is 46061001.

100160640 is a `hidden beast` number, since 10 + 0 + 16 + 0 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100160064 + 576 = 10008^2 + 24^2 .

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2935 + ... + 14454.

Almost surely, 2100160640 is an apocalyptic number.

100160640 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 100160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172943550).

100160640 is an abundant number, since it is smaller than the sum of its proper divisors (245726460).

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

100160640 is a wasteful number, since it uses less digits than its factorization.

100160640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414 (or 17399 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 100160640 is about 10008.0287769370. The cubic root of 100160640 is about 464.4072920043.

The spelling of 100160640 in words is "one hundred million, one hundred sixty thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 17389 34778 52167 69556 86945 104334 139112 156501 173890 208668 260835 278224 313002 347780 417336 521670 556448 626004 695560 782505 834672 1043340 1112896 1252008 1391120 1565010 1669344 2086680 2225792 2504016 2782240 3130020 3338688 4173360 5008032 5564480 6260040 6677376 8346720 10016064 11128960 12520080 16693440 20032128 25040160 33386880 50080320 100160640