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438052482638466 = 23671089682792633
BaseRepresentation
bin110001110011010000000101…
…0100111101110001010000010
32010110000102000200200112211220
41203212200022213232022002
5424404022441023412331
64151354310555215510
7161161150611402633
oct14346401247561202
92113012020615756
10438052482638466
11117639018498a63
124116960a147596
1315a57230781ac7
147a25bd35b588a
153599b3c65e296
hex18e680a9ee282

438052482638466 has 16 divisors (see below), whose sum is σ = 889181158789344. Its totient is φ = 143838128627424.

The previous prime is 438052482638437. The next prime is 438052482638497. The reversal of 438052482638466 is 664836284250834.

It is a self number, because there is not a number n which added to its sum of digits gives 438052482638466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544841395915 + ... + 544841396718.

It is an arithmetic number, because the mean of its divisors is an integer number (55573822424334).

Almost surely, 2438052482638466 is an apocalyptic number.

438052482638466 is an abundant number, since it is smaller than the sum of its proper divisors (451128676150878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438052482638466 is a wasteful number, since it uses less digits than its factorization.

438052482638466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089682792705.

The product of its (nonzero) digits is 1274019840, while the sum is 69.

The spelling of 438052482638466 in words is "four hundred thirty-eight trillion, fifty-two billion, four hundred eighty-two million, six hundred thirty-eight thousand, four hundred sixty-six".

Divisors: 1 2 3 6 67 134 201 402 1089682792633 2179365585266 3269048377899 6538096755798 73008747106411 146017494212822 219026241319233 438052482638466