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124412020414421 = 1011231802182321
BaseRepresentation
bin11100010010011011101110…
…010010000101011111010101
3121022111200011121120102112112
4130102123232102011133111
5112301331304211230141
61120334032042200405
735130320563011305
oct3422335622053725
9538450147512475
10124412020414421
1136706929122473
1211b53a71ab3105
135456006cc519c
1422a1806b85605
15e5b39745d7eb
hex7126ee4857d5

124412020414421 has 4 divisors (see below), whose sum is σ = 125643822596844. Its totient is φ = 123180218232000.

The previous prime is 124412020414411. The next prime is 124412020414433. The reversal of 124412020414421 is 124414020214421.

It is a happy number.

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 102975916767025 + 21436103647396 = 10147705^2 + 4629914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124412020414421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124412020414411) 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, 615901091060 + ... + 615901091261.

It is an arithmetic number, because the mean of its divisors is an integer number (31410955649211).

Almost surely, 2124412020414421 is an apocalyptic number.

It is an amenable number.

124412020414421 is a deficient number, since it is larger than the sum of its proper divisors (1231802182423).

124412020414421 is a wasteful number, since it uses less digits than its factorization.

124412020414421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231802182422.

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 124412020414421 its reverse (124414020214421), we get a palindrome (248826040628842).

The spelling of 124412020414421 in words is "one hundred twenty-four trillion, four hundred twelve billion, twenty million, four hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 101 1231802182321 124412020414421