Search a number
-
+
380161638468 = 223329633118787
BaseRepresentation
bin1011000100000110110…
…01100100000001000100
31100100021010012012001000
411202003121210001010
522212032334412333
6450351023133300
736315521416203
oct5420331440104
91310233165030
10380161638468
11137253374797
1261817444230
1329b065a8b91
141458555523a
159d4ee5a713
hex5883664044

380161638468 has 48 divisors (see below), whose sum is σ = 985645805760. Its totient is φ = 126715203072.

The previous prime is 380161638407. The next prime is 380161638469. The reversal of 380161638468 is 864836161083.

380161638468 is a `hidden beast` number, since 3 + 8 + 0 + 16 + 163 + 8 + 468 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (380161638469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3140971 + ... + 3259757.

It is an arithmetic number, because the mean of its divisors is an integer number (20534287620).

Almost surely, 2380161638468 is an apocalyptic number.

It is an amenable number.

380161638468 is an abundant number, since it is smaller than the sum of its proper divisors (605484167292).

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

380161638468 is a wasteful number, since it uses less digits than its factorization.

380161638468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148433 (or 148425 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 380161638468 in words is "three hundred eighty billion, one hundred sixty-one million, six hundred thirty-eight thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 29633 59266 88899 118532 118787 177798 237574 266697 355596 356361 475148 533394 712722 800091 1066788 1069083 1425444 1600182 2138166 3200364 3207249 4276332 6414498 12828996 3520015171 7040030342 10560045513 14080060684 21120091026 31680136539 42240182052 63360273078 95040409617 126720546156 190080819234 380161638468