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102343880 = 23519311433
BaseRepresentation
bin1100001100110…
…10010011001000
321010120121102002
412012122103020
5202200001010
614053330132
72351623442
oct606322310
9233517362
10102343880
1152852521
122a336948
1318284612
14d841492
158eb91a5
hex619a4c8

102343880 has 64 divisors (see below), whose sum is σ = 243734400. Its totient is φ = 38568960.

The previous prime is 102343877. The next prime is 102343889. The reversal of 102343880 is 88343201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102343889) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 236144 + ... + 236576.

It is an arithmetic number, because the mean of its divisors is an integer number (3808350).

Almost surely, 2102343880 is an apocalyptic number.

102343880 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 102343880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121867200).

102343880 is an abundant number, since it is smaller than the sum of its proper divisors (141390520).

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

102343880 is a wasteful number, since it uses less digits than its factorization.

102343880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 102343880 is about 10116.5152102886. The cubic root of 102343880 is about 467.7573558943.

The spelling of 102343880 in words is "one hundred two million, three hundred forty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 311 380 433 622 760 866 1244 1555 1732 2165 2488 3110 3464 4330 5909 6220 8227 8660 11818 12440 16454 17320 23636 29545 32908 41135 47272 59090 65816 82270 118180 134663 164540 236360 269326 329080 538652 673315 1077304 1346630 2558597 2693260 5117194 5386520 10234388 12792985 20468776 25585970 51171940 102343880