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1275977053 = 13195165899
BaseRepresentation
bin100110000001101…
…1101110101011101
310021220222100110101
41030003131311131
510103122231203
6330340341101
743422424501
oct11403356535
93256870411
101275977053
115a528a49a
122b73a4791
13174476710
14c166a301
157704741d
hex4c0ddd5d

1275977053 has 8 divisors (see below), whose sum is σ = 1446452000. Its totient is φ = 1115833968.

The previous prime is 1275977023. The next prime is 1275977089. The reversal of 1275977053 is 3507795721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1275977053 - 229 = 739106141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1275976994 and 1275977012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275977023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2582703 + ... + 2583196.

It is an arithmetic number, because the mean of its divisors is an integer number (180806500).

Almost surely, 21275977053 is an apocalyptic number.

1275977053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1275977053 is a deficient number, since it is larger than the sum of its proper divisors (170474947).

1275977053 is a wasteful number, since it uses less digits than its factorization.

1275977053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165931.

The product of its (nonzero) digits is 463050, while the sum is 46.

The square root of 1275977053 is about 35720.8210012032. The cubic root of 1275977053 is about 1084.6283572175.

The spelling of 1275977053 in words is "one billion, two hundred seventy-five million, nine hundred seventy-seven thousand, fifty-three".

Divisors: 1 13 19 247 5165899 67156687 98152081 1275977053