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380451208117 = 556968315893
BaseRepresentation
bin1011000100101001010…
…10001011101110110101
31100101000022001211220211
411202110222023232311
522213131002124432
6450435445425421
736325635624451
oct5422452135665
91311008054824
10380451208117
11137391874752
126189840b271
1329b51594276
14145b1bb1661
159d6a5a8d47
hex5894a8bbb5

380451208117 has 4 divisors (see below), whose sum is σ = 380519529580. Its totient is φ = 380382886656.

The previous prime is 380451208097. The next prime is 380451208129. The reversal of 380451208117 is 711802154083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46142906481 + 334308301636 = 214809^2 + 578194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380451208117 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 380451208117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380451508117) 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, 34152378 + ... + 34163515.

It is an arithmetic number, because the mean of its divisors is an integer number (95129882395).

Almost surely, 2380451208117 is an apocalyptic number.

It is an amenable number.

380451208117 is a deficient number, since it is larger than the sum of its proper divisors (68321463).

380451208117 is an equidigital number, since it uses as much as digits as its factorization.

380451208117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68321462.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 380451208117 in words is "three hundred eighty billion, four hundred fifty-one million, two hundred eight thousand, one hundred seventeen".

Divisors: 1 5569 68315893 380451208117