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103020030131 = 195422106849
BaseRepresentation
bin101111111110001111…
…0001110100010110011
3100211220122100202202112
41133330132032202303
53141441111431011
6115154324435535
710304634544034
oct1377436164263
9324818322675
10103020030131
113a766137477
1217b71248bab
13993a3b8015
144db419ca8b
152a2e43858b
hex17fc78e8b3

103020030131 has 4 divisors (see below), whose sum is σ = 108442137000. Its totient is φ = 97597923264.

The previous prime is 103020030077. The next prime is 103020030187. The reversal of 103020030131 is 131030020301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103020030131 - 222 = 103015835827 is a prime.

It is a super-2 number, since 2×1030200301312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103020030431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2711053406 + ... + 2711053443.

It is an arithmetic number, because the mean of its divisors is an integer number (27110534250).

Almost surely, 2103020030131 is an apocalyptic number.

103020030131 is a deficient number, since it is larger than the sum of its proper divisors (5422106869).

103020030131 is an equidigital number, since it uses as much as digits as its factorization.

103020030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5422106868.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 103020030131 its reverse (131030020301), we get a palindrome (234050050432).

The spelling of 103020030131 in words is "one hundred three billion, twenty million, thirty thousand, one hundred thirty-one".

Divisors: 1 19 5422106849 103020030131