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102123203030 = 2541435792581
BaseRepresentation
bin101111100011100000…
…1000110100111010110
3100202121010211020020222
41133013001012213112
53133122014444110
6114525330354342
710243464621542
oct1370701064726
9322533736228
10102123203030
113a345981a52
1217960a2b9b2
1398266628b4
144d2b02aa22
1529ca836c55
hex17c70469d6

102123203030 has 32 divisors (see below), whose sum is σ = 192684447648. Its totient is φ = 38926137600.

The previous prime is 102123202997. The next prime is 102123203041. The reversal of 102123203030 is 30302321201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2878661 + ... + 2913920.

It is an arithmetic number, because the mean of its divisors is an integer number (6021388989).

Almost surely, 2102123203030 is an apocalyptic number.

102123203030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102123203030 is a deficient number, since it is larger than the sum of its proper divisors (90561244618).

102123203030 is a wasteful number, since it uses less digits than its factorization.

102123203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792672.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102123203030 its reverse (30302321201), we get a palindrome (132425524231).

The spelling of 102123203030 in words is "one hundred two billion, one hundred twenty-three million, two hundred three thousand, thirty".

Divisors: 1 2 5 10 41 43 82 86 205 215 410 430 1763 3526 8815 17630 5792581 11585162 28962905 57925810 237495821 249080983 474991642 498161966 1187479105 1245404915 2374958210 2490809830 10212320303 20424640606 51061601515 102123203030