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1053468747421 = 1221186272111
BaseRepresentation
bin11110101010001111010…
…00010110011010011101
310201201012001022020000121
433111013220112122131
5114230000444404141
62123542403154541
7136052636415016
oct17250750263235
93651161266017
101053468747421
1137685670a252
12150204675a51
1378459881a1c
1438db971c00d
151c60a8e31d1
hexf547a1669d

1053468747421 has 4 divisors (see below), whose sum is σ = 1053555031744. Its totient is φ = 1053382463100.

The previous prime is 1053468747379. The next prime is 1053468747449. The reversal of 1053468747421 is 1247478643501.

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.

It is a cyclic number.

It is not a de Polignac number, because 1053468747421 - 29 = 1053468746909 is a prime.

It is a super-2 number, since 2×10534687474212 (a number of 25 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 (1053468744421) 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, 43123845 + ... + 43148266.

It is an arithmetic number, because the mean of its divisors is an integer number (263388757936).

Almost surely, 21053468747421 is an apocalyptic number.

It is an amenable number.

1053468747421 is a deficient number, since it is larger than the sum of its proper divisors (86284323).

1053468747421 is an equidigital number, since it uses as much as digits as its factorization.

1053468747421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86284322.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 1053468747421 in words is "one trillion, fifty-three billion, four hundred sixty-eight million, seven hundred forty-seven thousand, four hundred twenty-one".

Divisors: 1 12211 86272111 1053468747421