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903401420245 = 5180680284049
BaseRepresentation
bin11010010010101101110…
…10111011010111010101
310012100211121011010121221
431021112322323113111
5104300131230421440
61531003351410341
7122161062241432
oct15112672732725
93170747133557
10903401420245
11319148606205
121271033839b1
136726238b4cc
1431a21042b89
1518775e64d4a
hexd256ebb5d5

903401420245 has 4 divisors (see below), whose sum is σ = 1084081704300. Its totient is φ = 722721136192.

The previous prime is 903401420239. The next prime is 903401420279. The reversal of 903401420245 is 542024104309.

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

It can be written as a sum of positive squares in 2 ways, for example, as 251064129969 + 652337290276 = 501063^2 + 807674^2 .

It is a cyclic number.

It is not a de Polignac number, because 903401420245 - 217 = 903401289173 is a prime.

It is a super-2 number, since 2×9034014202452 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 903401420245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90340142020 + ... + 90340142029.

It is an arithmetic number, because the mean of its divisors is an integer number (271020426075).

Almost surely, 2903401420245 is an apocalyptic number.

It is an amenable number.

903401420245 is a deficient number, since it is larger than the sum of its proper divisors (180680284055).

903401420245 is a wasteful number, since it uses less digits than its factorization.

903401420245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180680284054.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 903401420245 in words is "nine hundred three billion, four hundred one million, four hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 180680284049 903401420245