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380205952131 = 3126735317377
BaseRepresentation
bin1011000100001100000…
…10100110110010000011
31100100101012120112221210
411202012002212302003
522212130210432011
6450355245021203
736316600161435
oct5420602466203
91310335515853
10380205952131
11137276391255
126182a254803
1329b12822c95
141458b3ac655
159d53cb06a6
hex58860a6c83

380205952131 has 4 divisors (see below), whose sum is σ = 506941269512. Its totient is φ = 253470634752.

The previous prime is 380205952111. The next prime is 380205952169. The reversal of 380205952131 is 131259502083.

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

It is not a de Polignac number, because 380205952131 - 25 = 380205952099 is a prime.

It is a super-3 number, since 3×3802059521313 (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 380205952131.

It is not an unprimeable number, because it can be changed into a prime (380205952111) 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, 63367658686 + ... + 63367658691.

It is an arithmetic number, because the mean of its divisors is an integer number (126735317378).

Almost surely, 2380205952131 is an apocalyptic number.

380205952131 is a deficient number, since it is larger than the sum of its proper divisors (126735317381).

380205952131 is a wasteful number, since it uses less digits than its factorization.

380205952131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126735317380.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 380205952131 in words is "three hundred eighty billion, two hundred five million, nine hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 3 126735317377 380205952131