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10103131030 = 254197254039
BaseRepresentation
bin10010110100011000…
…11000101110010110
3222002002211020022011
421122030120232112
5131142400143110
64350305054434
7505236124336
oct113214305626
928062736264
1010103131030
114314a54973
121b5b62741a
13c50189155
146bbb2b0c6
153e1e8048a
hex25a318b96

10103131030 has 32 divisors (see below), whose sum is σ = 18821315520. Its totient is φ = 3902023680.

The previous prime is 10103131001. The next prime is 10103131033. The reversal of 10103131030 is 3013130101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10103131030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103131033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87250 + ... + 166789.

It is an arithmetic number, because the mean of its divisors is an integer number (588166110).

Almost surely, 210103131030 is an apocalyptic number.

10103131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10103131030 is a deficient number, since it is larger than the sum of its proper divisors (8718184490).

10103131030 is a wasteful number, since it uses less digits than its factorization.

10103131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254184.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 10103131030 its reverse (3013130101), we get a palindrome (13116261131).

The spelling of 10103131030 in words is "ten billion, one hundred three million, one hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 41 82 97 194 205 410 485 970 3977 7954 19885 39770 254039 508078 1270195 2540390 10415599 20831198 24641783 49283566 52077995 104155990 123208915 246417830 1010313103 2020626206 5051565515 10103131030