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385180215457 = 4437759112061
BaseRepresentation
bin1011001101011101000…
…01111010100010100001
31100211012212112022102211
411212232201322202201
522302322113343312
6452541020442121
736554060545042
oct5465641724241
91324185468384
10385180215457
1113939920a984
12627980a9341
132a42624026b
14148ddc908c9
15a0458313a7
hex59ae87a8a1

385180215457 has 8 divisors (see below), whose sum is σ = 386102897280. Its totient is φ = 384257774160.

The previous prime is 385180215389. The next prime is 385180215467. The reversal of 385180215457 is 754512081583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-385180215457 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 385180215457.

It is not an unprimeable number, because it can be changed into a prime (385180215467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3381207 + ... + 3493267.

It is an arithmetic number, because the mean of its divisors is an integer number (48262862160).

Almost surely, 2385180215457 is an apocalyptic number.

It is an amenable number.

385180215457 is a deficient number, since it is larger than the sum of its proper divisors (922681823).

385180215457 is a wasteful number, since it uses less digits than its factorization.

385180215457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120263.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The spelling of 385180215457 in words is "three hundred eighty-five billion, one hundred eighty million, two hundred fifteen thousand, four hundred fifty-seven".

Divisors: 1 443 7759 112061 3437237 49643023 869481299 385180215457