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102023240 = 23511231871
BaseRepresentation
bin1100001010011…
…00000001001000
321002222022120112
412011030001020
5202104220430
614042413452
72346116564
oct605140110
9232868515
10102023240
1152653630
122a201288
13181a16a7
14d79a6a4
158e54195
hex614c048

102023240 has 32 divisors (see below), whose sum is σ = 250421760. Its totient is φ = 37099200.

The previous prime is 102023221. The next prime is 102023249. The reversal of 102023240 is 42320201.

It is not an unprimeable number, because it can be changed into a prime (102023249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115496 + ... + 116375.

It is an arithmetic number, because the mean of its divisors is an integer number (7825680).

Almost surely, 2102023240 is an apocalyptic number.

102023240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102023240 is an abundant number, since it is smaller than the sum of its proper divisors (148398520).

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

102023240 is a wasteful number, since it uses less digits than its factorization.

102023240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231893 (or 231889 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 102023240 is about 10100.6554242782. The cubic root of 102023240 is about 467.2683554087.

Adding to 102023240 its reverse (42320201), we get a palindrome (144343441).

The spelling of 102023240 in words is "one hundred two million, twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 231871 463742 927484 1159355 1854968 2318710 2550581 4637420 5101162 9274840 10202324 12752905 20404648 25505810 51011620 102023240