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1075742237 = 1232987253
BaseRepresentation
bin100000000011110…
…1000011000011101
32202222012100221002
41000013220120131
54200342222422
6254424520045
735441441513
oct10007503035
92688170832
101075742237
11502257079
12260320025
13141b3958b
14a2c264b3
1564693692
hex401e861d

1075742237 has 4 divisors (see below), whose sum is σ = 1075841820. Its totient is φ = 1075642656.

The previous prime is 1075742233. The next prime is 1075742243. The reversal of 1075742237 is 7322475701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7322475701 = 10516967151.

It can be written as a sum of positive squares in 2 ways, for example, as 53085796 + 1022656441 = 7286^2 + 31979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075742237 - 22 = 1075742233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1075742237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075742233) 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, 31298 + ... + 55955.

It is an arithmetic number, because the mean of its divisors is an integer number (268960455).

Almost surely, 21075742237 is an apocalyptic number.

It is an amenable number.

1075742237 is a deficient number, since it is larger than the sum of its proper divisors (99583).

1075742237 is an equidigital number, since it uses as much as digits as its factorization.

1075742237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99582.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 1075742237 is about 32798.5096765082. The cubic root of 1075742237 is about 1024.6355196660.

The spelling of 1075742237 in words is "one billion, seventy-five million, seven hundred forty-two thousand, two hundred thirty-seven".

Divisors: 1 12329 87253 1075742237