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102203031231320 = 23515018471701289
BaseRepresentation
bin10111001111001111111111…
…010111110001101101011000
3111101212111212222020120101212
4113033033333113301231120
5101343443301443400240
61001211231355402252
730345632250504365
oct2717177727615530
9441774788216355
10102203031231320
112a624075780108
12b567770453388
1345049209c7286
141b3492019946c
15bc3806dd4165
hex5cf3ff5f1b58

102203031231320 has 32 divisors (see below), whose sum is σ = 229957108552800. Its totient is φ = 40881161242368.

The previous prime is 102203031231239. The next prime is 102203031231331. The reversal of 102203031231320 is 23132130302201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59223236 + ... + 60924524.

It is an arithmetic number, because the mean of its divisors is an integer number (7186159642275).

Almost surely, 2102203031231320 is an apocalyptic number.

102203031231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102203031231320 is an abundant number, since it is smaller than the sum of its proper divisors (127754077321480).

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

102203031231320 is a wasteful number, since it uses less digits than its factorization.

102203031231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203147 (or 3203143 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 102203031231320 its reverse (23132130302201), we get a palindrome (125335161533521).

The spelling of 102203031231320 in words is "one hundred two trillion, two hundred three billion, thirty-one million, two hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1501847 1701289 3003694 3402578 6007388 6805156 7509235 8506445 12014776 13610312 15018470 17012890 30036940 34025780 60073880 68051560 2555075780783 5110151561566 10220303123132 12775378903915 20440606246264 25550757807830 51101515615660 102203031231320