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161404348 = 22789239271
BaseRepresentation
bin10011001111011…
…01010110111100
3102020201012010211
421213231112330
5312304414343
624003242204
73666625420
oct1147552674
9366635124
10161404348
1183121526
1246079364
1327592a41
1417616b80
15e28379d
hex99ed5bc

161404348 has 48 divisors (see below), whose sum is σ = 329011200. Its totient is φ = 67858560.

The previous prime is 161404339. The next prime is 161404349. The reversal of 161404348 is 843404161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161404349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595453 + ... + 595723.

It is an arithmetic number, because the mean of its divisors is an integer number (6854400).

Almost surely, 2161404348 is an apocalyptic number.

It is an amenable number.

161404348 is an abundant number, since it is smaller than the sum of its proper divisors (167606852).

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

161404348 is a wasteful number, since it uses less digits than its factorization.

161404348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 161404348 is about 12704.5010921327. The cubic root of 161404348 is about 544.4672267327.

The spelling of 161404348 in words is "one hundred sixty-one million, four hundred four thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 89 178 239 271 356 478 542 623 956 1084 1246 1673 1897 2492 3346 3794 6692 7588 21271 24119 42542 48238 64769 85084 96476 129538 148897 168833 259076 297794 337666 453383 595588 675332 906766 1813532 5764441 11528882 23057764 40351087 80702174 161404348