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102352020 = 22352959997
BaseRepresentation
bin1100001100111…
…00010010010100
321010121000120120
412012130102110
5202200231040
614053431540
72351656251
oct606342224
9233530516
10102352020
1152858651
122a33b5b0
1318288234
14d844428
158ebb7d0
hex619c494

102352020 has 96 divisors (see below), whose sum is σ = 301795200. Its totient is φ = 25880064.

The previous prime is 102351983. The next prime is 102352037. The reversal of 102352020 is 20253201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 102162 + ... + 103158.

It is an arithmetic number, because the mean of its divisors is an integer number (3143700).

Almost surely, 2102352020 is an apocalyptic number.

102352020 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 102352020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150897600).

102352020 is an abundant number, since it is smaller than the sum of its proper divisors (199443180).

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

102352020 is a wasteful number, since it uses less digits than its factorization.

102352020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 102352020 is about 10116.9175147374. The cubic root of 102352020 is about 467.7697567137.

The spelling of 102352020 in words is "one hundred two million, three hundred fifty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 59 60 87 116 118 145 174 177 236 290 295 348 354 435 580 590 708 870 885 997 1180 1711 1740 1770 1994 2991 3422 3540 3988 4985 5133 5982 6844 8555 9970 10266 11964 14955 17110 19940 20532 25665 28913 29910 34220 51330 57826 58823 59820 86739 102660 115652 117646 144565 173478 176469 235292 289130 294115 346956 352938 433695 578260 588230 705876 867390 882345 1176460 1705867 1734780 1764690 3411734 3529380 5117601 6823468 8529335 10235202 17058670 20470404 25588005 34117340 51176010 102352020