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103031023100231 = 449940122898831
BaseRepresentation
bin10111011011010011000111…
…100010000110000101000111
3111111210200002011000120210002
4113123103013202012011013
5102001030013403201411
61003043444254551515
730462513541326602
oct2733230742060507
9444720064016702
10103031023100231
112a913236588266
12b68012920859b
134564a25ca5695
141b62a29d95339
15bda11788333b
hex5db4c7886147

103031023100231 has 4 divisors (see below), whose sum is σ = 103031050498464. Its totient is φ = 103030995702000.

The previous prime is 103031023100209. The next prime is 103031023100279. The reversal of 103031023100231 is 132001320130301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103031023100231 is a prime.

It is a super-2 number, since 2×1030310231002312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031023100281) 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, 6950015 + ... + 15948816.

It is an arithmetic number, because the mean of its divisors is an integer number (25757762624616).

Almost surely, 2103031023100231 is an apocalyptic number.

103031023100231 is a deficient number, since it is larger than the sum of its proper divisors (27398233).

103031023100231 is an equidigital number, since it uses as much as digits as its factorization.

103031023100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27398232.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 103031023100231 its reverse (132001320130301), we get a palindrome (235032343230532).

The spelling of 103031023100231 in words is "one hundred three trillion, thirty-one billion, twenty-three million, one hundred thousand, two hundred thirty-one".

Divisors: 1 4499401 22898831 103031023100231