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2051553307 = 71113255709
BaseRepresentation
bin111101001001000…
…0011100000011011
312021222100201001211
41322102003200123
513200144201212
6535323523551
7101560625656
oct17222034033
95258321054
102051553307
11963059401
124930895b7
1326905778b
1415667889d
15c01979a7
hex7a48381b

2051553307 has 8 divisors (see below), whose sum is σ = 2098867680. Its totient is φ = 2004750720.

The previous prime is 2051553299. The next prime is 2051553311. The reversal of 2051553307 is 7033551502.

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 2051553307 - 23 = 2051553299 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2051553397) 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, 119832 + ... + 135877.

It is an arithmetic number, because the mean of its divisors is an integer number (262358460).

Almost surely, 22051553307 is an apocalyptic number.

2051553307 is a deficient number, since it is larger than the sum of its proper divisors (47314373).

2051553307 is a wasteful number, since it uses less digits than its factorization.

2051553307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255893.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 2051553307 is about 45294.0758488348. The cubic root of 2051553307 is about 1270.6548603614.

The spelling of 2051553307 in words is "two billion, fifty-one million, five hundred fifty-three thousand, three hundred seven".

Divisors: 1 71 113 8023 255709 18155339 28895117 2051553307