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920040053 = 9761315473
BaseRepresentation
bin110110110101101…
…011001001110101
32101010012212200112
4312311223021311
53341012240203
6231143352405
731541132342
oct6665531165
92333185615
10920040053
1143237a789
12218152705
131187c20ca
148a2957c9
1555b896d8
hex36d6b275

920040053 has 8 divisors (see below), whose sum is σ = 931101528. Its totient is φ = 909010944.

The previous prime is 920040049. The next prime is 920040067. The reversal of 920040053 is 350040029.

It can be written as a sum of positive squares in 4 ways, for example, as 1162084 + 918877969 = 1078^2 + 30313^2 .

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 920040053 - 22 = 920040049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920040353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51725 + ... + 67197.

It is an arithmetic number, because the mean of its divisors is an integer number (116387691).

Almost surely, 2920040053 is an apocalyptic number.

It is an amenable number.

920040053 is a deficient number, since it is larger than the sum of its proper divisors (11061475).

920040053 is a wasteful number, since it uses less digits than its factorization.

920040053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16183.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 920040053 is about 30332.1620231727. The cubic root of 920040053 is about 972.6029401808.

The spelling of 920040053 in words is "nine hundred twenty million, forty thousand, fifty-three".

Divisors: 1 97 613 15473 59461 1500881 9484949 920040053