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103031978453 is a prime number
BaseRepresentation
bin101111111110100101…
…1110011100111010101
3100211221110211210202222
41133331023303213111
53142002141302303
6115155432512125
710305141236555
oct1377513634725
9324843753688
10103031978453
113a771958418
1217b7524b645
13993ca0c631
144db59cd165
152a304e8938
hex17fd2f39d5

103031978453 has 2 divisors, whose sum is σ = 103031978454. Its totient is φ = 103031978452.

The previous prime is 103031978419. The next prime is 103031978459. The reversal of 103031978453 is 354879130301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99488514724 + 3543463729 = 315418^2 + 59527^2 .

It is a cyclic number.

It is not a de Polignac number, because 103031978453 - 222 = 103027784149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103031978459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51515989226 + 51515989227.

It is an arithmetic number, because the mean of its divisors is an integer number (51515989227).

Almost surely, 2103031978453 is an apocalyptic number.

It is an amenable number.

103031978453 is a deficient number, since it is larger than the sum of its proper divisors (1).

103031978453 is an equidigital number, since it uses as much as digits as its factorization.

103031978453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 103031978453 in words is "one hundred three billion, thirty-one million, nine hundred seventy-eight thousand, four hundred fifty-three".