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193969244 = 2273373821
BaseRepresentation
bin10111000111110…
…11110001011100
3111111222122210002
423203323301130
5344124003434
631125233432
74543466000
oct1343736134
9444878702
10193969244
119a543a67
1254b62878
1331255301
141ba92700
151206757e
hexb8fbc5c

193969244 has 48 divisors (see below), whose sum is σ = 406660800. Its totient is φ = 80861760.

The previous prime is 193969229. The next prime is 193969267. The reversal of 193969244 is 442969391.

It is a congruent number.

It is an unprimeable number.

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, 48854 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (8472100).

Almost surely, 2193969244 is an apocalyptic number.

193969244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193969244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203330400).

193969244 is an abundant number, since it is smaller than the sum of its proper divisors (212691556).

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

193969244 is a wasteful number, since it uses less digits than its factorization.

193969244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883 (or 3867 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 193969244 is about 13927.2841573654. The cubic root of 193969244 is about 578.8654436195.

The spelling of 193969244 in words is "one hundred ninety-three million, nine hundred sixty-nine thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 37 49 74 98 148 196 259 343 518 686 1036 1372 1813 3626 3821 7252 7642 12691 15284 25382 26747 50764 53494 106988 141377 187229 282754 374458 565508 748916 989639 1310603 1979278 2621206 3958556 5242412 6927473 13854946 27709892 48492311 96984622 193969244