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103014440021 = 127811137323
BaseRepresentation
bin101111111110000100…
…0111001110001010101
3100211220020211202120102
41133330020321301111
53141433144040041
6115154004543445
710304536202243
oct1377410716125
9324806752512
10103014440021
113a762a69549
1217b6b3b1b85
1399391ab76c
144db3545793
152a2dbd209b
hex17fc239c55

103014440021 has 4 divisors (see below), whose sum is σ = 103825577472. Its totient is φ = 102203302572.

The previous prime is 103014439991. The next prime is 103014440057. The reversal of 103014440021 is 120044410301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120044410301 = 235219322187.

It is a cyclic number.

It is not a de Polignac number, because 103014440021 - 222 = 103010245717 is a prime.

It is a super-2 number, since 2×1030144400212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103014439975 and 103014440002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103014440071) 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, 405568535 + ... + 405568788.

It is an arithmetic number, because the mean of its divisors is an integer number (25956394368).

Almost surely, 2103014440021 is an apocalyptic number.

It is an amenable number.

103014440021 is a deficient number, since it is larger than the sum of its proper divisors (811137451).

103014440021 is an equidigital number, since it uses as much as digits as its factorization.

103014440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811137450.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 103014440021 its reverse (120044410301), we get a palindrome (223058850322).

The spelling of 103014440021 in words is "one hundred three billion, fourteen million, four hundred forty thousand, twenty-one".

Divisors: 1 127 811137323 103014440021