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103011323293 = 401256886093
BaseRepresentation
bin101111111101111110…
…1000000110110011101
3100211220000222102020001
41133323331000312131
53141431344321133
6115153414054301
710304500541464
oct1377375006635
9324800872201
10103011323293
113a76122a93a
1217b6a34a391
139938659c48
144db2d739db
152a2d7b887d
hex17fbf40d9d

103011323293 has 4 divisors (see below), whose sum is σ = 103268209788. Its totient is φ = 102754436800.

The previous prime is 103011323263. The next prime is 103011323309. The reversal of 103011323293 is 392323110301.

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 100531482489 + 2479840804 = 317067^2 + 49798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103011323293 is a prime.

It is a super-2 number, since 2×1030113232932 (a number of 23 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 (103011323213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128442646 + ... + 128443447.

It is an arithmetic number, because the mean of its divisors is an integer number (25817052447).

Almost surely, 2103011323293 is an apocalyptic number.

It is an amenable number.

103011323293 is a deficient number, since it is larger than the sum of its proper divisors (256886495).

103011323293 is an equidigital number, since it uses as much as digits as its factorization.

103011323293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256886494.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 103011323293 its reverse (392323110301), we get a palindrome (495334433594).

The spelling of 103011323293 in words is "one hundred three billion, eleven million, three hundred twenty-three thousand, two hundred ninety-three".

Divisors: 1 401 256886093 103011323293