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102968220 = 223519412203
BaseRepresentation
bin1100010001100…
…10101110011100
321011202022211210
412020302232130
5202324440340
614114544420
72360133615
oct610625634
9234668753
10102968220
1153139603
122a598110
1318442854
14d964c0c
15908e180
hex6232b9c

102968220 has 96 divisors (see below), whose sum is σ = 311028480. Its totient is φ = 25367040.

The previous prime is 102968219. The next prime is 102968231. The reversal of 102968220 is 22869201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45639 + ... + 47841.

It is an arithmetic number, because the mean of its divisors is an integer number (3239880).

Almost surely, 2102968220 is an apocalyptic number.

102968220 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 102968220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155514240).

102968220 is an abundant number, since it is smaller than the sum of its proper divisors (208060260).

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

102968220 is a wasteful number, since it uses less digits than its factorization.

102968220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2273 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 102968220 is about 10147.3257560798. The cubic root of 102968220 is about 468.7065993595.

The spelling of 102968220 in words is "one hundred two million, nine hundred sixty-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 41 57 60 76 82 95 114 123 164 190 205 228 246 285 380 410 492 570 615 779 820 1140 1230 1558 2203 2337 2460 3116 3895 4406 4674 6609 7790 8812 9348 11015 11685 13218 15580 22030 23370 26436 33045 41857 44060 46740 66090 83714 90323 125571 132180 167428 180646 209285 251142 270969 361292 418570 451615 502284 541938 627855 837140 903230 1083876 1255710 1354845 1716137 1806460 2511420 2709690 3432274 5148411 5419380 6864548 8580685 10296822 17161370 20593644 25742055 34322740 51484110 102968220