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1053156485 = 5210631297
BaseRepresentation
bin111110110001011…
…110010010000101
32201101200220002202
4332301132102011
54124102001420
6252300444245
735045453033
oct7661362205
92641626082
101053156485
114a0530067
12254849685
1313a25c224
149dc27553
15626d1575
hex3ec5e485

1053156485 has 4 divisors (see below), whose sum is σ = 1263787788. Its totient is φ = 842525184.

The previous prime is 1053156479. The next prime is 1053156487. The reversal of 1053156485 is 5846513501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5846513501 = 10356762267.

It can be written as a sum of positive squares in 2 ways, for example, as 490091044 + 563065441 = 22138^2 + 23729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053156485 - 220 = 1052107909 is a prime.

It is a super-2 number, since 2×10531564852 = 2218277163795110450, which 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 (1053156487) 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, 105315644 + ... + 105315653.

It is an arithmetic number, because the mean of its divisors is an integer number (315946947).

Almost surely, 21053156485 is an apocalyptic number.

It is an amenable number.

1053156485 is a deficient number, since it is larger than the sum of its proper divisors (210631303).

1053156485 is an equidigital number, since it uses as much as digits as its factorization.

1053156485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210631302.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 1053156485 is about 32452.3725634968. The cubic root of 1053156485 is about 1017.4138267729.

Adding to 1053156485 its reverse (5846513501), we get a palindrome (6899669986).

The spelling of 1053156485 in words is "one billion, fifty-three million, one hundred fifty-six thousand, four hundred eighty-five".

Divisors: 1 5 210631297 1053156485