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102923988 = 223192231033
BaseRepresentation
bin1100010001001…
…11111011010100
321011200002011120
412020213323110
5202322031423
614114003540
72356560636
oct610477324
9234602146
10102923988
1153109352
122a5765b0
131842868b
14d952a56
159080ee3
hex6227ed4

102923988 has 72 divisors (see below), whose sum is σ = 264737088. Its totient is φ = 31059072.

The previous prime is 102923959. The next prime is 102924023. The reversal of 102923988 is 889329201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99120 + ... + 100152.

It is an arithmetic number, because the mean of its divisors is an integer number (3676904).

Almost surely, 2102923988 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 102923988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132368544).

102923988 is an abundant number, since it is smaller than the sum of its proper divisors (161813100).

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

102923988 is a wasteful number, since it uses less digits than its factorization.

102923988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 102923988 is about 10145.1460314773. The cubic root of 102923988 is about 468.6394757376.

The spelling of 102923988 in words is "one hundred two million, nine hundred twenty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 19 23 38 46 57 69 76 92 114 138 228 276 361 437 722 874 1033 1083 1311 1444 1748 2066 2166 2622 3099 4132 4332 5244 6198 8303 12396 16606 19627 23759 24909 33212 39254 47518 49818 58881 71277 78508 95036 99636 117762 142554 235524 285108 372913 451421 745826 902842 1118739 1354263 1491652 1805684 2237478 2708526 4474956 5417052 8576999 17153998 25730997 34307996 51461994 102923988